A. J. Rahn Greenhouses

Cyclamen

2011-11-30T17:22:00.000-08:00

Cyclamen persicum

Cyclamen are among the most beautiful and popular flowering plants. This winter blooming houseplant with butterfly shaped blooms comes in a range of colors, from Christmas reds, electric fuchsia pink, maroons and purples, to a very bright white. They have equally attractive variegated heart shaped leaves in deep green. They prefer bright light and a cool location such as a windowsill, and should only be watered when the top of the soil is dry to the touch. With proper care, cyclamen can bloom for up to four months.
In the spring, the plant can be moved outdoors to a semi shaded spot and watered occasionally. When it begins to show new growth in August, begin fertilizing it and watering more frequently. Move the plant indoors before the first frost and continue it's care indoors in a bright, cool location. Blooms will begin again in late November.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Vanda Orchids

2011-11-01T10:41:00.000-07:00

Vanda Orchid

Of the many varieties of orchid species, the Vanda is one of the easiest to grow, and has one of the most long lasting blooms. Flower colors range from vivid purple to bright fuchsia, yellows and reds, and even bright blue as seen in the photo above. Some are very fragrant, and the bloom time is quite long. Foliage is strap like green leaves growing in layers opposite each other.
Vanda Orchids are, of course, tropical, and love high humidity, bright but not direct sunlight, and thrive best when they receive proper air circulation. They do not excel in a crowded wet space and will pick up many diseases and insect pests if left in this situation. Water when the surface is dry to the touch, less in winter or after repotting, more frequently during spring and summer when they will really put on lots of growth. They are heavy feeders during the growing season, preferring a balanced formula fertilizer of 20-20-20. Follow directions on your fertilizer for frequency of application. If fertilized with too high a nitrogen content, they may not bloom for you. To increase humidity around your orchid, try misting the foliage every morning. This allows the foliage to dry off before dark, thus avoiding possible fungal problems.
Once you have the optimum conditions for your Vanda, sit back and enjoy the beautiful display it offers you.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Annual Blue Salvia

2011-09-15T18:34:00.000-07:00

Blue Salvia
Salvia farinacea 'Victoria Blue'

Annual Salvia makes an attractive display in your garden or container and comes in a variety of colors. All have the same general characteristics and likes and dislikes. I will refer to only the blue Salvia pictured above, which has been thriving all summer outside our greenhouse complimented by yellow Gaillardia.
The Victoria Blue Salvia pictured is a true blue color which is a highly sought color in many gardens. It grows 18-24" tall and wide, and the flower spikes can be as long as 8-10". The gray green foliage complements the flowers nicely, and this plant once established is quite drought resistant. Planted in a sunny location in well drained soil, this annual will provide you with masses of color all summer long and well into the fall. As with all annuals, fertilization at least once a week will keep them looking outstanding.
These beautiful blue flowers are very attractive to butterflies and hummingbirds, but not at all to deer, and do not have to be deadheaded to continue flowering. They really do stand out strikingly in the middle of a container planter with Lantana, Lysimachia, or Calibrachoa around the outside. For easy care, deer resistant, continuous blooming, bright blue color in your gardens or containers next year, try this variety and be amazed at the compliments you get from the neighbors.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Annual Lantana

2011-09-02T17:34:00.000-07:00

Lantana

Lantana plants are grown as annuals in zones 1-7, where they are quite prolific bloomers all summer long in full sun. They are very drought tolerant once established, and not picky about soil type as long as it is well drained. They come in a range of colors from reds, yellows and oranges, to pink, rose and lavender. For full plants with lots of blooms all summer, fertilize every week with a general purpose fertilizer, or a bloom booster formula.
These hard working, long blooming plants can be used as specimen plants, in containers, planted in masses, or some varieties are trailing and look great in hanging baskets. We have both varieties growing at the greenhouse, some in window boxes, others planted in flowing masses in our entrance garden and they are thriving! They attract lots of butterflies, but deer will avoid these plants completely, preferring more tender and tasty plants than Lantana. Customers who have fairly large herds grazing in their yards have told us the deer won't touch these plants, helping hold down frustration levels for our avid gardeners.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Cone Flower

2011-08-25T16:42:00.000-07:00

Cone Flower
Echinacea

A real workhorse perennial in the garden, the coneflower will continuously bloom from late June until frost. New varieties now come in colors other than purple, ranging from many shades of yellow, pink to red, chartreuse, and shades of orange, as well as white. My favorite combination in terms of variety name, are the red Tomato Soup, and the very yellow Macaroni and Cheese. They sound good enough to eat! Height ranges vary from very short 6-8" varieties, to 18-24" types, making them very versatile in front or in the back of your perennial bed.
Cone flowers thrive in full sun, are very drought resistant once established, and faithfully return every spring fuller than the year before. Treated with a slow release fertilizer in early spring, your cone flower plant will be even more colorful and full than it would be if just left alone. They aren't picky about soil and will grow in most any type you may have, but as with all plants, do better in a richer well drained soil. Side dressings of compost in early spring will achieve both a better soil consistency and provide fertilizer at the same time! When establishing a new plant, keep it watered when dry until it really gets its roots set. This may take an entire season to accomplish, but well worth it for a very strong plant for many years to come.
Finches love the seeds in the center cone of these flowers, so don't deadhead them too soon, giving the birds a chance for a fresh treat. As with all fuzzy leafed plants, deer won't munch on them.

By: Sandy Weinkam
A.J. Rahn Greenhouses

August Lily

2011-08-16T16:24:00.000-07:00

August Lily
Lycorus

The August Lily, blooming now in many gardens, has many common names by which it is known, depending on what part of the country it is growing in. Known as the Surprise Lily, the Magic Lily, the Naked Lily, or the Assumption Lily, as well as August Lily, this hardy bulb is very long lived. In my own father's garden, this flower has been showing off every year since he was a small boy, and he is now 86 years old! Each year the clumps multiply with more flowers, yet never take over and crowd out other plants.
In early spring, deep green strap-like foliage appears for 6-8 weeks, then dies completely to the ground. Not until early August do you see any activity in the soil where the foliage was, then almost like magic, the leafless 24" stem of the flower stalk appears, taking only about a week to reach full size and bloom! On each flower stalk are up to 8 lily like pink-lavender outward facing flowers. These will bloom for up to three weeks if the weather isn't too hot. They prefer sun to part sun, and may not bloom for a year or two if they are moved. Soil fertility doesn't seem to affect flowering, nor does fertilization seem to make a huge difference. Best of all they are deer and rodent resistant!
For years of easy care, beautiful flowers each August, this bulb is an excellent choice!

By: Sandy Weinkam
A.J. Rahn Greenhouses

Perennial Coreopsis

2011-08-08T17:19:00.000-07:00

Coreopsis
Tickseed

Coreopsis is a native North American plant that will grow and flourish in even the least fertile area of your sunny perennial garden. With its cheery yellow flowers, this plant will bring many delightful summer months of color. Newer cultivars also come in a variety of lighter yellows, shades of lavender, and the newest ones in deep yellow with burgundy red eyes.
This native species thrives in full sun and blooms all summer until frost. Once established it is very drought resistant, and will do best in fairly good soil with some fertilizer in early spring. Some species can be as tall as 3', while others may only reach 8-12". Foliage is of two types. The threadleaf varieties have a very ferny type foliage and tend to be shorter and more spreading in their habit, for instance the Moonbeam Coreopsis. The grandiflora types have a more upright habit with stiffer leaves that are deep green and pointed. The variety pictured is Jethro Tull, a grandiflora type with fluted petals that is very floriferous. The flowers are very attractive to butterflies, but not at all to deer, a real plus with our exploding deer population! When they begin to outgrow their space, you can split the plants in early spring and either share them with neighbors, or find a spot in another garden of your own that could use more bright summer color.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Giant Elephant Ear

2011-08-01T13:17:00.000-07:00

Giant Elephant Ear
Colocasia gigantea

For a truly car stopping, eye popping plant to grow in your garden, try this tropical monster plant from Thailand! These plants can grow 6-10' tall in a single season, and they get their name from their resemblance in size and shape to an elephant's ear. The leaves can reach proportions of 5'x4', and are rounded and a beautiful blue green color. As you can see from the picture, it has a bloom that is much like the bloom of a peace lily, though much, much larger.
This bulb plant prefers a shady to part shady location with ample room and some wind protection. Provide an acidic, well drained soil for optimum conditions for massive growth. Water this plant often, not allowing it to dry out between waterings, and fertilize at least once a week with a high nitrogen fertilizer. Grown here in Cincinnati, this plant will not survive the winter outside, but before the first frost you can cut it back, dig it up and dry the bulb, then keep it in a cool dry place for the winter, or you can keep it in a large pot inside. Beware though, as you will need lots of room if you plan on growing it through the winter. You can get a head start on the new season by starting the bulb in a pot inside in early spring, then after danger of frost, replant it in your garden for another spectacular summer!

By: Sandy Weinkam
A.J. Rahn Greenhouses

Black Eyed Susan

2011-07-27T17:50:00.000-07:00

Black Eyed Susan
Rudbeckia

The Black Eyed Susan is a staple in the perennial garden, and shows off loads of blooms and color every summer. An extremely hardy perennial, the Black Eyed Susan is not fussy about soil conditions, and is very drought resistant once established. Planted in full sun, these plants will bloom well into fall with little or no care.
A dose of slow release fertilizer in spring will be greatly appreciated, and occasional watering in drought conditions will keep these cheery yellow flowers coming back stronger every year. When the planting gets too large for it's space, divide the plant in spring when it begins to reappear, then trade with a neighbor for some plant they may be dividing, or just share yours. What a wonderful way to be neighborly, and perhaps add a new perennial to your own collection! Best of all, these plants are deer resistant, but keep in mind deer may try anything if they are desperate. Paired with purple coneflower, these two make wonderful taller backdrops in your perennial garden.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Butterfly Bush

2011-07-19T12:08:00.000-07:00

Butterfly Bush
Buddleia

The Butterfly Bush is one of the hardiest and most prolific of all summer blooming shrubs. It would be an easy care addition to any garden, especially if you want to attract a wide variety of butterflies throughout the summer. Flowers come in many colors, primarily various shades of reds and blue- violets, but also include a variety called Bicolor, that is light violet and orange on the same bloom. The long flower panicles, some as long as 12 inches, are also very fragrant. Heights range from the dwarf 'Lo and Behold' at a mature height of 2-3 feet, to the very tall 'Royal Red' at 8-10 feet. Most varieties average about 6 feet, and all are very amenable to heavy pruning, so you can keep them in bounds in your own garden if you so desire.
These shrubs grow best in full sun, are not picky about soil, but like all perennials thrive in better soil. Once established, these woody shrubs are also very drought tolerant, though they will need watering more often the first year if rain is lacking in your area. A slow release fertilizer applied in spring will be most appreciated by your specimen, giving it a head start on vigor for the summer ahead.
While these bushes attract many species of butterflies, they also bring hummingbirds to your garden as well, while deer are not attracted at all. For an easy care, fragrant, beautiful addition to your perennial garden, these shrubs are a great choice.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Perennial Hibiscus

2011-07-11T11:04:00.000-07:00

Perennial Hibiscus

Just coming into bloom now is the huge, gorgeous perennial hibiscus in colors ranging from Fireball red , to Sultry Kiss hot pink, to Pink Elephant Ear (almost as huge as an elephant's ear!), to the one pictured, Blue River II. These flowers can be as wide in diameter as a dinner plate, 10 to 12" across. Even though each flower only lasts one day, there are a plethora of buds that continue to form and open well into August. For curbside attraction, these beauties can't be beat.
Hibiscus are not too picky about care once they are established. Plant them in full sun, in well drained soil, then watch them take off. A side dressing of slow release fertilizer in spring will be welcomed, but they will thrive without fertilizer as well. In cases of severe lack of rainfall you may need to supplement water, but for the most part these plants are carefree and don't seem to be affected by insects. Each winter they die back to the ground, and each late spring they reappear with multiple stems, adding more stems with each passing year.
Varieties range in height from 3' to 6 or 7', and will get a diameter of 3 to 4 feet around with age. Hummingbirds love this flower, and will return year after year to dine on it's nectar. For eye-popping appeal and hummingbird attraction this easy care perennial can't be beat!

Sandy Weinkam
A.J. Rahn Greenhouses

Roses Mid Summer Care

2011-07-04T18:18:00.000-07:00

Rose Care

Now that we are in the midst of summer heat and humidity, there are a few helpful tips that will pull your roses through to fall with flying colors. As you probably know, roses really prefer cool, low humidity areas to show off their best form. You've noticed, I'm sure, how beautiful, vibrant and prolific the blooms are in the spring, but as soon as the temperatures rise to high 80's and 90's, fewer and smaller, and sometimes faded or different color blooms appear. Blackspot and mildew begin to creep onto the lower leaves, turning them yellow and causing the plant to begin to defoliate.
There are several proactive steps you can take to prevent, or if it's already started, to arrest the process. First and foremost is to make sure your bushes are not crowded and are getting plenty of circulation around their bases. Second and just as important is to make sure your roses are well watered and fed regularly, being careful not to get the foliage wet. A robust healthy rose bush is less apt to succumb to disease and insects if taken care of. Third, a regular regimen of spraying with a fungicide once the weather gets hot and humid will go a long way toward keeping fungi under control. If the blackspot doesn't have a chance to get started, you won't have to spend as much time fighting it off.
If you do have the start of blackspot, be sure to clean all the dead and dying leaves from on and around your bushes and place them in the trash not in your compost. Fungal spores can live for years before they reinfect plants, so remove them permanently. After you have cleaned on and around your plants, wait until late in the evening just before sunset to spray your fungicide so you don't burn the foliage. As long as it doesn't rain, you won't have to spray again for two or three weeks. A continuous program of spray throughout the summer, however, will assure your plants of being healthy going into the fall and winter. (Knock Out Roses seem to withstand most fungal problems, but have been known to get mildew, another fungal disease.)
Don't forget, roses need at least 2" of rain a week, so about twice a week water them well if it hasn't rained much, and they will reward you with a summer and fall of continuous gorgeous blooms!

By: Sandy Weinkam
A.J. Rahn Greenhouses

Ostrich Ferns

2011-06-01T17:20:00.000-07:00

Ostrich Fern
Matteuccia struthiopteris

The Ostrich Fern is a big, bold, beautiful dark green fern with large fronds that can reach 4-5 feet at maturity! With their very large size and vase shaped growth habit, these ferns can make quite a statement as a background plant in your shade garden, or as a specimen plant, or to naturalize in a dappled shade area of your yard. One caution to share is that they are aggressive spreaders, sending out underground runners, and you may find you will have more than enough plants to share after two or three years.
The Ostrich Fern thrives in humus rich, moist soil, but mine have had no problem in just decent composted soil. Adding sphagnum peat to your soil if it is too sandy or full of clay will go a long way towards making them happy. A general purpose slow release fertilizer once in spring is more than adequate to ensure maximum growth in these easy to grow ferns. They prefer part to full shade, but will accommodate some sun if watered more frequently. Best of all, in our ever exploding deer population, you won't find a single nibble taken from these wonderful ferns!

By: Sandy Weinkam
A.J. Rahn Greenhouses

Miss Kim Lilac

2011-05-15T17:44:00.000-07:00

Miss Kim Lilac
Syringa patula 'Miss Kim'

The Miss Kim Lilac is one of the best dwarf lilac shrubs to find space for in your smaller garden landscape plan. The compact, upright, rounded habit is perfect for those less expansive spaces you may be trying to fill. Their very fragrant, light lavender flowers in spring will fill your senses with a most pleasant fragrance for up to two or three weeks dependent on weather conditions. The dark green glossy foliage makes an excellent backdrop to the lavender flowers, and as an added bonus, in fall the foliage becomes a beautiful deep burgundy red.
Miss Kim thrives in full sun, but will tolerate partial shade at the expense of bloom numbers. Well drained soil is best, but this variety will adapt to most soils. Fertilize in early spring with a general purpose fertilizer, then again after blooming to ensure a plentiful bloom for the following spring. This variety, once established, is also drought tolerant. Prune after blooming is finished if you must prune at all, to allow the following spring's blooms to form all summer. Pruning in fall or early spring is not recommended as this will cause you to cut off the flower crop still to come. Miss Kim is also very mildew resistant unlike the common lilac. One final plus to finding a place in your landscape plan for this fragrant beauty is that deer do not seem interested in pruning this shrub for you.

By: Sandy Weinkam
A.J. Rahn Greenhouses

German Bearded Iris

2011-05-04T07:20:00.000-07:00

German Bearded Iris

German Bearded Iris are very easy to grow and come in a rainbow of colors. Some are single in color, others are bi color in blues, reds, white, yellows and pinks as well as lavender. They bloom in early spring to early summer, and some re-bloom again in fall. The green and sometimes variegated leaves are strap like and arrayed in a fan shape clump. Heights range from 10" up to 30".
Iris prefer full sun and well drained soil, and fertilization in early spring and again after blooming. A balanced all purpose fertilizer is more than adequate for these carefree plants. When these prolific perennials become too dense, usually every two to three years, they will greatly benefit from thinning. They grow and multiply from underground rhizomes(stems) which can be divided and then planted elsewhere or shared with other gardeners. When replanting, be sure not to plant them too deep, leaving the rhizome barely showing at ground level. Cut the foliage back by 1/3 before replanting so the plant is not top heavy and susceptible to wind or weather pulling them out of the ground until new roots are established.
One of the best qualities of this perennial plant besides being so carefree is that it is deer resistant! With the deer population explosion everywhere, it is becoming more and more difficult to find plants they will not decimate. So enjoy this beautiful spring flowering plant in all its colorful hues, and then in three years share it with others or create another eye catching bed for yourself!

By: Sandy Weinkam
A.J. Rahn Greenhouses

Pansy Orchid

2011-04-27T14:38:00.001-07:00

Pansy Orchid
Miltonia

Pansy orchids are so named for their striking resemblance to the common pansy. Their gorgeous colors and fairly long bloom time though, are anything but common. With their flat faces that can be up to 2-3" across, and colors in reds, whites and pinks with various face markings in contrasting colors, and a bonus of wonderful fragrance, these beauties will bring many weeks of enjoyment to your home.
Miltonia orchids flourish best in bright indirect light, well drained soil, and high humidity. Water when the soil is dry about an inch into the soil, then water thoroughly. Fertilize with half strength all purpose houseplant fertilizer every two weeks during the spring and summer months while they are doing most of their growing. They do prefer to be slightly root bound, but if necessary they can be transplanted into a slightly larger container of well draining orchid soil. The best time to do this is shortly after blooming is finished. If your orchid is refusing to produce any flowers, try placing it in a cooler temperature at night for a few weeks, then return it to a warm area and patiently wait for the flowers to appear.
These orchids, as with most orchid varieties, are not difficult to maintain as long as you supply the conditions they prefer. Try this variety for an unusual look, and you will be pleasantly surprised at the compliments you will receive from friends and neighbors.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Martha Washington Geraniums

2011-04-10T16:41:00.000-07:00

Martha Washington Geranium
Pelargonium domesticum

Martha Washington geraniums are not true geraniums, but the flowers and foliage very much resemble summer garden geraniums. They are typically found in garden stores in early spring, as that is when they show off their beautiful blooms. They need cool temperatures at night in the low 50's F in order to set bloom, and once temperatures reach the high 70's to 80's will stop blooming. If placed in the garden in a cool shady place for the summer though, they will reflower again in the fall when the temperature cools down into the 50's and 60's.
The blooms on these plants range from red to pink to purple, and also white, frequently in bi- color with the centers a contrasting darker color. Their foliage is a crinkled dark green, much more serrated than the garden geranium. They prefer to be slightly pot bound, in a well drained soil, and only watered when dry. Fertilize with a general purpose fertilizer in spring and summer, but not at all in the fall and winter.
Once fall temperatures dip into the upper 40's at night, bring them inside, cut them back quite a bit, and place on a sunny windowsill for the duration of the winter. Water sparingly during this time. You can begin acclimating them to the spring cool temperatures by placing them outside in early spring during daytime temperatures in the low 50's. This will encourage them to set flower once again. Don't forget to bring them in at night if the temperature is going to drop into the 40's, and begin fertilizing at this point.
With proper care, these cool weather beauties will be around for your enjoyment for many years to come!

By: Sandy Weinkam
A.J. Rahn Greenhouses

Sweet Broom Plant

2011-03-27T11:02:00.000-07:00

Sweet Broom
Cytisus spachianus

The Sweet Broom plant has very fragrant, bright yellow flower spikes that bloom in early spring and again in the fall. Their fragrance is a very strong sweet citrus scent, most pronounced on bright, sunny, cool days. Here in zone 5 and 6, they have to be brought in to overwinter. They keep nicely when treated as an indoor houseplant in winter, then set flower buds if kept cool in late Jan., early Feb. Pruning of these woody plants is best done immediately after blooming.
After blooming in spring, these plants can be used as wispy green tall plants in summer planters, with summer annuals planted beneath them, then as the weather cools again in the fall, you will be rewarded once again with another set of colorful, fragrant yellow flowers.
Plant care requirements include full sun, general purpose potting soil, and fertilization with a general purpose type every other week during the growing season. Water when dry, being sure to water thoroughly when you do water, then wait until they are pretty dry before watering again. Here at the greenhouse, we plant them outdoors in early spring with pansies and English daisies, since they are frost tolerant to 15F.
As an unusual cool weather annual, these easy care plants will bring many weeks of colorful, fragrant enjoyment in your pansy display, then serve as the pillar in your summer container when joined with your filler and spiller plants.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Lenten Rose

2011-03-15T18:45:00.000-07:00

Helleborus
Lenten Rose

The Helleborus is a very early blooming perennial, showing it's delicate flowers in late winter to early spring. Though the flowers may look delicate, they will withstand late snow cover and late frosts. Their common name is Lenten Rose, given because their bloom time is during the Christian season of Lent. Their foliage is evergreen in zones 6 and above, but even at colder zones may retain their dark green leathery leaves all winter with only minor tip browning. Flower colors range from white to pinks, peach, rose and purples, frequently with darker spotting on the petals. They may be single petaled as seen above, while some varieties display double sets of petals. The blooms can last up to six weeks! Many have their flower heads nodding at the ground, while some of the newer cultivars face upwards.
These plants prefer humusy, well drained soil in part to full shade, and best of all they are quite deer resistant. Once established, they are very drought tolerant, but choose your planting site carefully as they really don't take well to being transplanted. New plants can be taken from offshoots of the original plant. To keep these plants thriving, fertilize in early spring with a slow release fertilizer.
The first few years I had one of these plants, I totally missed the blooms because I didn't begin to look for them until the crocuses and daffodils were blooming. By that time, I discovered finally, they were finished blooming. So don't wait for warm weather to check for blooms, get out there and check for that first hint that spring is just around the corner, and the thought that winter is on it's way out will bring a smile to your face!

By: Sandy Weinkam
A.J. Rahn Greenhouses

Kalanchoe

2011-03-07T14:04:00.000-08:00

Kalanchoe
Crasulaceae

The Kalanchoe is a very easy care, beautiful flowering houseplant. A member of the succulent family, and a relative of the Jade plant, it's growing needs are simple, yet it provides continuous flowering for up to six months with proper care. The foliage is fleshy, succulent, oval shaped, and dark green. Flower color ranges from red to shades of pink, as well as yellow, orange and white, appearing in tight clusters atop the foliage.
Indoors, these plants prefer bright to sunny windowsills, with room temperatures 55F or warmer. They are quite sensitive to cold temperatures, so don't allow them to be up against a cold window. Being a succulent, over watering can be a problem. Only water these plants when the surface is dry to the touch, and in winter, let them dry even deeper. The best soil is a well draining cactus/succulent soil, and a simple houseplant fertilizer every other week during the growing season is more than adequate. If placing outdoors in the summer, be sure they are protected from direct afternoon sun or the foliage will become sunburned.
When flowers are finished, cut off the flower heads and let the plant rest for six to eight weeks in a lower light situation and reduce water. After this rest period, replace the plant back in the high light area and begin to water more frequently, but only as noted above when needed. Within a few weeks, flower buds should begin to appear. This plant flowers naturally in spring and summer, but is forced into bloom at all times of year for indoor color.
For an easy care, colorful, long blooming houseplant, the Kalanchoe is just the right choice.

Gloxinias

2011-02-27T17:40:00.000-08:00

Gloxinia
Sinningia speciosa

Gloxinia plants are closely related to African Violets, and take the same general care that violets do. They are tuberous plants that need bright indirect light. If you don't provide enough light, these plants will stretch and probably not bloom. As with violets, allow the surface of the soil to dry to the touch before watering them thoroughly. Warm water is usually best and try not to get it on the foliage or the crown. They prefer temperatures in the mid 60's, but when dormant, keep them at 50 F. To raise humidity levels around the plants, use pebble trays with water just enough to barely cover the pebbles. Do not mist these plants to increase humidity! A general purpose houseplant fertilizer will do quite well while the plant is growing and blooming to keep it looking it's best.
Gloxinias need a well drained soil like violets do, and are best repotted when the plant goes dormant. You can start new plants from leaf cuttings like African violets, and they normally bloom for 6-8 weeks.
To bring your plant to dormancy, after all blooms are finished water less and less frequently each week until the leaves turn yellow and dry. Store in a cool(40-50F) place. After several months, new growth will start to appear. At this point, begin watering and fertilizing, and place in the bright indirect light and warmer temperature. You will be rewarded with another round of beautiful blooms once again!

Bear Paw Fern

2011-02-13T18:11:00.000-08:00

Bear Paw Fern
Polypodium Aglaomorpha meyeniana

This fern gets it's unusual name from the furry rhizomes that grow along the surface of the soil. They are quite large, brown, and do resemble a bear's paw. This fern is relatively easy to grow, preferring a high light situation indoors, high humidity, and they like to be kept slightly moist. During the summer they can be placed outdoors in a more shaded area, but be sure to watch the water requirements, as they do not like to get totally dry. Fertilize only during the spring and summer, as that is when they are doing all their growing. Repot as little as possible, as they do not mind being a little pot bound, and tend to go into a state of shock for a while after repotting.
These ferns are quite beautiful with their large, dark green, lance shaped leathery fronds and those large furry brown paws which will eventually hang over the pot, looking like a bear is crawling out of the soil! As an easy to care for fern, this plant deserves a prime spot in your home for full enjoyment.

2011-01-31T16:59:00.000-08:00

Ronan Rahn

Two new arrivals at the greenhouse have added quite a bit of music and merriment to a long winter season of snow and cold. We now have a new canary who is still learning to sing, but is getting better at it with each passing day. By spring he will be warbling at full throat, just as his namesake the Irish Tenor Ronan sings at full throat. He loves attention from customers, and frequently sings with the canary CD we play on occasion during the day. He especially loves to sing in the morning to greet the new day whether there is snow or bitter cold outside. He adds so much joy to the days.
Our second arrival also loves the canary, but for a different reason!

Callie 2

Callie 2 arrived as a Christmas present for Susan, one of A.J. Rahn's owners. Her daughter Mary picked her up from a shelter in Northern Kentucky to help fill the huge void left by Calico, who died just before Christmas as mentioned in the previous blog entry. She is going to have a very big job to fill, and only being a young 6 months, doesn't yet have the dignity of Calico, but she more than makes up for it in energy! Don't let her picture fool you. She only appears to be resting. The minute someone comes in she is up and purring, looking for major attention. When not getting acquainted with customers, she is studying the canary with focused intensity! The canary seems oblivious to all the attention from the cat, and just continues to sing his heart out for anyone who cares to listen. Callie 2 loves to play with her tissue ball, her string toy, and adores being petted by anyone, which causes her purring engine to begin roaring.
Stop in during this cold white season for a warm, colorful, glance at some gorgeous flowers, and visit with our newest members before the busy season begins. Check our web site for hours:
A.J.Rahn Greenhouses

2011-01-18T13:51:00.000-08:00

Callico

Callico, our greenhouse spokescat, has been a wonderful ambassador at our greenhouse for close to 19 years. Whether basking in the sun on her favorite bench, or being carried around by some of her devoted subjects, Callico was a noted fixture. She bore many children, some of whose owners still stop by to relate the latest exploits of her offspring. It is with a deep sadness that we note her death just before Christmas. She lived a full life, brought much joy and many smiles, and has been featured on this blog since it's inception 3 years ago. Her pick of the week was always timely and factual, the pictures sometimes included her, and others she chose to sit out. She kept the greenhouse free of critters, including the newest golden retriever Rudy. We were always greeted each morning as she vocalized her desire for breakfast and related the night's exploits of vandalizing raccoons who made their nightly raids of the garbage cans in the greenhouse. They were too big and ferocious for her to repel, so she hid and took note so she could report their bad behavior. Many tears have been shed over her death, but she lived many years in her favorite home. We will miss her greatly!

2010-12-24T14:02:00.000-08:00

Merry Christmas & Holiday Cheer!

Wishing all our friends a joyous and peace filled season and the best year to come!

Christmas 2010

2010-12-19T14:07:00.000-08:00

Rahn's Holiday Train Express

For the past 9 years we have provided entertainment for young and not so young children with our 3 rail, o gauge, 1/48th scale train display. Over the years, this display has grown from one train to seven this year! This is no longer just a display, but a functional system that can run as many as 7 trains at one time! From the deep mountain tunnel to the water run grist mill, the trains also move past a running river, the farm country and through the village. You can see eyes sparkle with delight as the six minute run with seven trains stopping and starting at crossings make their full circuit before beginning the cycle again. The villages are full of holiday cheer with a skating rink, toy shop, Christmas tree lot run by the boy scouts, a bakery, cafe, church, carolers in the square, and so much more.
Please stop in to see and enjoy a very close view from three sides, and chat with our master engineer Keith, who will regale you with stories of our display and other train displays in the city.
We'll have the trains up and running until Dec. 31, so hurry in!

By: Doris Koop
Gardening Expert at A.J. Rahn's Greenhouses

Fraser Fir

2010-12-07T06:22:00.000-08:00

Fraser Fir
Abies Fraseri

I love walking outside the greenhouses to take in the wonderful scent of our Fraser Fir trees. "Abies Fraseri" are native to the higher Southern Appalachian Mountains of North Carolina, and are named after their discoverer, John Fraser, a North American plant collector.
The Fraser has become a most cherished Christmas tree, and has historically been selected most often for our nation's White House Holiday tree because of it's natural symmetry and inviting fragrance. As importantly, I asked family and friends of the greenhouse why their repeated Holiday choice was the Fraser. Here are some of their responses.
Debbie: "Aromatics. They have a wonderful scent and are long lasting. The Fraser Fir stays fresh throughout the season; they are Everfresh."
Sandy: "They have a fresh natural outdoor fragrance. They hold their beauty, fragrance and fullness well beyond Christmas and the New Year holidays. Our Frasers are not taken from the wild but are grown on a small family farm in North Carolina. I appreciate that, for every one they cut, the family replants two or three to replenish nature. I value that they cut them the week before Thanksgiving and deliver them within three days. That's Fresh! Also, these trees can have a life after the holidays. Just place them in your backyard until spring to create a warm habitat for our winter bird friends."
Michelle: "They hold their needles, so no shedding on your floors and the fragrance is unbeatable for that fresh smell."
Susan: :They change the feeling of the room they're in with their aroma and the depths of their green and the thickness of their foliage."
Joe: "The Fraser is simply the best tree you can get in this region in terms of freshness, scent, and beauty."
Frank: "Of course the true fir scent is wonderful, but also the thick open foliage allows for a perfect ornament display both on the edge and on the inner segments of the branches. Also, the needles are soft with little dropping, and the color is multifaceted; a bold rich green with a hint of blue gray on the underside."
Well, for me, the gift of the Fraser trees, available at our greenhouse, is that they are produced by a family farm that values the replenishment of the land and focuses on providing a gifted Holiday experience to our winter Holidays. There is no other regionally grown tree that shares, in such a complete way, the aroma and thick lush deep green texture this evergreen provides, which also lifts and feeds our winter celebrations and life. I am grateful when I walk out the door and experience the wonderful scent of our Abies Fraseri trees. I invite you to come and share the experience. It is a true delight!
All good,
Margaret Rahn

Poinsettia

2010-12-01T18:41:00.001-08:00

Poinsettia

A truly traditional holiday plant, the poinsettia has become a staple in many homes and businesses during the Christmas holidays. It's stunning colors and form, as well as it's easy care, make it a wonderful choice.
Here at A.J. Rahn Greenhouses, all of our poinsettias are grown in clay pots on site, giving them optimum growing conditions for beautiful color in your decoration scheme. Poinsettias prefer a brightly lit location, away from drafts (either cold or warm), and to be watered only when the soil is dry to the touch. They now come in many more colors than red or white. Some of the newer varieties are: Ice Punch, a beautiful hot pink and light pink blend; Peppermint Stick, pictured above with spots of deep reddish pink; Polar Bear, a very white- white with deep green foliage; and Visions of Grandeur, a very spicy peach color.
Every year during the holiday season, we find it necessary to discuss an "old wives tale" that continues to persist about poinsettias. It is alleged that parts or all of the poinsettia plant are poisonous to pets and/or people. This is definitely Not True! Poinsettias are not poisonous to people or pets. The Ohio State University in 1971 ran extensive studies on the toxicity of all parts of the poinsettia plant. This study was done in response to a movement to place safety caution tags on all plants deemed poisonous. Results of these tests were conclusive that no part of the poinsettia plant was poisonous to people or pets. Calico will testify to this fact! At the time, the studies were reported on all news media, but every year since then, the myth has persisted. This is primarily due to lack of knowledge on the part of newscasters and, surprisingly, veterinarians.
So fear not! Enjoy the beauty of this seasonal house plant during the holidays, then cut them back in March and they will make great foliage plants outdoors in the summer.

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Angel Trumpet / Brugmansia

2010-11-16T12:02:00.000-08:00

Angel Trumpet
Brugmansia

The Angel Trumpet plant is a most unusual specimen that is sure to cause people to stop and stare. With it's pendulous trumpet shaped flowers, and it's vigorous growth habit, it makes quite a statement in your yard or in your house.
This tropical plant prefers moist, fertile, well drained soil in full to part sun. If grown indoors, give it as much indirect light as possible, or it may not bloom. Bloom time varies according to conditions, but in our area it blooms primarily in the fall after the summer temperatures cool down. Keep this plant outside in the spring and summer and fertilize on a regular basis during this time frame. It will need to be brought in when night time temperatures drop into the 40's, and can be cut back and allowed to go dormant for the winter. Water sparingly during this time and do not fertilize.
Blooms appear usually in fall after the plant has reached 3-5' in height. They can come in a variety of colors: white, yellow, red, pink, or orange. They have a distinct lemony fragrance that is strongest as evening approaches. Some of them may have double trumpets, and some may have variegated foliage dependent on the variety.
One important fact to note about the Angel Trumpet plant is that all parts of it are poisonous. Take precautions around children and pets when growing this beauty.

By: Sandy Weinkam
Gardening Expert at A.J. Rahn's Greenhouses

Night Blooming Cereus

2010-11-08T18:00:00.000-08:00

Night Blooming Cereus

The eye popping white, very fragrant flowers on this cactus type houseplant more than make up for the uninteresting foliage this plant displays. As a result of the foliage, Cereus is difficult to find in most stores. The Cereus is, however, easy to start from cuttings, and once people see and smell the flowers, you will be getting lots of requests for a cutting. Easy to grow, this prolific cactus plant prefers well drained soil with organic matter and sand and wants to be pot bound to bloom.
During the spring and summer, this plant prefers being outside in filtered light. Feed monthly during this time with houseplant fertilizer and water when dry. It will begin to set bud in late summer- early fall along the stems, and as temperatures cool in mid to late fall, bring the plant indoors and keep near a well lit window. As the buds swell over time, you will begin to notice the elongated buds growing and approaching maturity. When fully mature, the buds will begin to open around 9 -10:00pm one night, and will be fully open by around midnight. Some who have watched them open, swear you can almost see minute by minute progress! You'll want to stay up long enough to see and smell this amazing flower display, because the flowers only last one night, and by morning will wither and fade.
With the conclusion of flowering, reduce watering and discontinue fertilizing through the winter months. These plants really do want to be root bound, and will only bloom when they have reached a certain age, (usually 3-5 years).
For an unusual yet easy to grow flowering cactus, the night blooming Cereus is one I would definitely recommend.

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Garden Winterizing

2010-11-01T08:52:00.000-07:00

Garden Winterizing

Cold temperatures are now upon us, and a few garden chores need to be done before retreating to the inside. To help winterize your garden to get the best jump on next spring, and assure perennials' and trees' survival over the winter months, get out the rakes and clippers.
All annuals except fall Pansies and flowering Kale and Cabbage, need to be removed from your flower beds. As long as none of these plants had some disease such as mildew, they can be chopped up and put in the compost pile. For perennials, cut back the foliage to just ground level after the first hard frost, then cover them with mulched leaves to keep them from trying to come up during a possible warm spell in February.
Before the ground freezes, water evergreens, especially broad leaf evergreens such as rhododendrons, hollies, and azaleas, and newly planted trees and shrubs. These also will benefit from a mulch cover for winter.
Roses do not have to be pruned before winter unless the canes are very long and in danger of being wind whipped and broken off. If they are, only prune enough to keep this problem from occurring. Some winter die back usually occurs, and if you prune them now, you will most likely have to prune off winter die back in the spring, possibly stunting your bushes and causing them to struggle to regain their vigor. Clean all leaves and dead branches from the roses, both on the bushes and under them, throwing them away and not putting them in your compost. Any fungal diseases from this year will winter over and create havoc on your roses next season. Finally, to ensure your bushes do not freeze if we have an unusually cold winter, sometime in December mulch up around the base of your bushes to protect the grafted area.
Rake fallen leaves from the lawn to prevent grass mold and possible grass loss over the winter due to lack of sun on the grasses. If you have a mulching mower, you can mulch the leaves into the lawn as long as they are not heavily blanketing the grass.
Cover containers that will remain outdoors to prevent them from filling with water and then freezing and cracking. Clean terra cotta pots and concrete containers and store them in a garage or basement.
Drain and bring in garden hoses and turn off outdoor taps.
Finally, clean and sharpen all your garden tools before you put them away, and before you know it, it will be time to plant your spring garden and you will have a great head start!

By: Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Fall Color

2010-09-24T19:01:00.000-07:00

Fall Color

Gardeners hate to admit defeat even when the opponent is the weather. Our water bills from this summer are proof of that! Many of us feel the same way about the approaching winter. We would rather end the growing season with one last burst of color. Fortunately there are many plants that do well in, and even love the cooler temperatures.
Familiar fall plants such as chrysanthemums, ornamental kales and flowering cabbages come in a wide variety of flower colors and leaf textures. The kales and cabbages will continue to look great even into the beginning of winter. Many become more colorful as the temperature gets colder. The hardy mums will bloom for weeks and are frost tolerant. Although the hardy mums are not considered to be perennial plants in our zone, they may reappear in your garden next summer.

Some of the other annual plants that thrive in cool temperatures are calibrachoa (million bells), argyranthemum, snapdragon and dusty miller. The adorable pansies, violas and panolas that are so popular in the spring will also do beautifully in cool to even cold fall conditions. Annual and perennial grasses can add height and texture to fall gardens and container plantings. Where many perennials have already had their blooming time, asters are just beginnig to show off their color. Huechera, with their palette of colors of foliage, will also add to your fall landscape.

By mixing some of these cool weather annuals and perennials in your garden or containers with colorful gourds and pumpkins you can enjoy a new growing season of fall color.

By: Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

Fall Vegetables

2010-09-14T18:25:00.000-07:00

Fall Vegetables

With cooler weather on the way, now is a good time to make room in your garden for fall vegetables. If some of your summer vegetable crop is finished, perhaps it's time to send them off to the compost pile and plant a few of the various cole crops and lettuces. Cabbages, Broccoli, Collards, Kale, Turnips, Radishes and a variety of lettuce types will keep you supplied in fresh vegetables long after the summer crop is finished. Seeds can be started indoors now, then transplanted outside. Many garden centers have already started these seeds for you and you can purchase seedlings two or three weeks in growth and ready to transplant. Be sure to offer some protection from hungry critters with a fence or special cloth cover that allows light and water through, or try planting in containers to foil their little appetites.
Cool weather crops tend to do better in the fall than in the spring, due to fewer insect pests and the temperatures moving toward cooler rather than toward warmer. If frost is a possibility overnight, you can cover the plants and still have good crops for quite a few weeks more. No extra fertilizer is necessary, however a bit of compost around the plants will give them nutrients that may be depleted from the summer crop. Of course, if no rain is occurring, water when necessary.
These plants require little attention and offer lots of great eating for many more weeks before it will be time to shut the garden down for the winter.

By: Sandy Weinkam
Gardening Expert at A.J. Greenhouses

Hardy Hibiscus

2010-08-29T13:32:00.000-07:00

Hardy Hibiscus

It is hard to beat the beautiful mid summer bloom of the perennial hardy hibiscus. The flowers can be anywhere from 4 to 12" in diameter. Often called rose mallow, the hardy hibiscus blooms in mid summer and continues blooming until mid September. They are relatively easy to grow, and once established will delight you year after year with their huge showy blooms. Colors range from white to deep reds, purples and pinks, as well as a new variety of yellow. Foliage colors also appear in many shades of green as well as copper and burgundy.
Hardy hibiscus need a sunny location and moist well drained soil to be their best. They can be planted from May to as late as Labor Day, giving them plenty of time to get rooted in before winter. Although they have a woody stem, they may die back to the ground during the winter. They frequently don't reappear in spring until mid to late May, but grow quickly once they appear. Give these plants lots of room to grow and expand, as some can reach up to 6 feet tall and 3-4 feet in diameter. A slow release general purpose fertilizer applied as soon as they begin to appear in mid spring will assure a strong, healthy, showy specimen all summer. Watering is usually not a problem unless two or three weeks goes by without rain, in which case you will have to water them as you would any woody plant. This is, of course, after they are established. New plantings will need more frequent watering until they are well rooted in.
For an easy, showy perennial to have in your landscape, Calico recommends you find some space in your flower bed for one or two of these magnificent specimens!

By: Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

Drought

2010-08-22T12:43:00.000-07:00

Drought

Drought conditions can occur at any time of year, but tend to occur most frequently during the summer and fall months. Most gardeners will recognize the effects of even a short term drought on annuals, lawns, shrubs, and perennials in their landscape, and will respond appropriately and in a timely manner with a thorough watering of the affected plants. Many people, however, may not recognize early symptoms of drought in landscape trees until those plantings are in severe stress. Symptoms of drought injury to trees may be sudden, or take two or three years to be revealed. Symptoms can include wilting, curling, yellowing or even browning of foliage on both deciduous and evergreen specimens. Often drought stress may not kill a tree outright, but may weaken it to the point where infestation of insects or diseases takes it's toll. Considering the fact that replacement of a tree specimen in your landscape can be quite costly, it is wise to pay even more attention to your trees than your lawn or plants.
How much water a tree should receive depends on the tree size. Small trees (one to seven inches in diameter) and medium trees ( eight to fifteen inches in diameter) should be watered deeply at least three times per month April to September if significant and/or frequent rainfall has not occurred for two weeks or more. Watering methods include: automated drip irrigation systems; soaker hoses coiled several times under the dripline; five gallon buckets with 1/4 " holes drilled in the bottom (place at least three under the tree if small, five or more for medium to large trees); watering bags; soil needles (deep root feeders). Remember the roots on established trees may be quite deep, so a light watering is not helpful, even if you do it every day. Water deeply and slowly for 4 to 8 hours based on tree trunk diameter size three times a month as mentioned previously.
Healthy, mature trees should be able to withstand a short term drought, but keeping them healthy is most important. Remember to look up for signs of drought in your trees, especially when you notice your landscape plantings suffering from lack of moisture.

By: Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Delphinium

2010-08-18T06:07:00.000-07:00

Delphinium

Delphinium are an old fashioned favorite in many gardens. Their tall elegant spires and beautiful colors stand out in bold fashion at the back of any garden. For a bright blue color that may be hard to achieve in your garden otherwise, Delphinium provide many blue hues from very dark to all shades of light blue. Other colors such as white, pink, yellow, and red are also available.
Delphinium prefer full sun, but cool roots, so provide this with summer mulch. Good winter drainage is a must to prevent freezing and thawing of the crown. When watering, don't allow the foliage to get wet as you will then have to fight mildew. Before blooms appear, only water when the soil is somewhat dry. Once they begin blooming, however, they will need water more frequently. Fertilize with bone meal in the spring when they first begin to appear above ground. Slugs can be a big problem, so keep slug bait around the plants to avoid holey foliage. Since many of these beauties have such tall flower spikes, up to six feet with some varieties, staking is helpful to prevent breakage and crimping of the stalks. There are newer varieties, however that only achieve a foot or two in height for those who don't have space for such tall varieties. Most varieties survive and flower about three years, after which you should dig up and divide the plant. Reseeding also occurs freely if you don't deadhead the old flowers.

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Tomatoes

2010-08-02T08:48:00.000-07:00

Tomatoes

A long awaited treat for summer is now available in many backyard gardens and local farmer's markets. Juicy ripe tomatoes that we dream of all winter are finally here! This easy to grow vegetable/fruit plant thrives in full sun and really grows well in decent soil. It will also produce in poorer soils but perhaps not as prolifically. You can start seeds in February inside and slowly move to bigger pots as the seedlings produce two or three sets of leaflets, being always sure to keep them on a sunny windowsill. As April arrives, move them outside during warm days for optimum sun exposure, being careful always to bring them in at night. Tomato plants simply abhor cool or cold nights (below 50F) and may take quite awhile to recover from a chill. They can be safely planted in our zone 5 after the 15th of May. For an easier, less hands on job, many garden centers have plants available usually in late April. These can be planted directly in your garden, again when weather conditions permit. If you apply a slow release fertilizer at the time of transplanting them into your garden, they will provide you with abundant fruits from sometime in July until late September or later, dependent on the night temperatures. Staking or caging your plants keeps the fruit off the ground where they might rot. Water only when the soil is completely dry once they are planted. If you wish to plant in a container, use only one plant in a container no smaller than 14" in diameter, as these plants need lots of room for roots and plant.
Pests include the tomato hornworm, a very large green caterpillar that will defoliate your plant rather quickly, and the smaller green and black tomato worm, that bores into the fruit whether it's green or red. Neither are very prolific, and can usually be spotted with regular exams of your plant. When you find one, the best control is to pull them off (Tomato Hornworm), or out of your tomato (Tomato Worm), drop them to the ground and apply your garden shoe to them. Squirrels have also become major pests recently. Short of completely fencing your tomato garden including the top, just plant enough for everyone to share. Sometimes the squirrels are just looking for moisture, in which case a birdbath or dish of water not too close to the garden usually helps.
There are as many types of tomatoes as there are tastes. Heirloom tomatoes that have been around since tomatoes were first domesticated, are very flavorful, but perhaps not as prolific as the hybrid varieties. Cherry type tomatoes and grape tomatoes are extremely heavy bearing plants that will keep you and your whole neighborhood supplied with enough tomatoes for all your salad needs or just to pop in your mouth for a healthy snack. Now also available is the tomaccio tomato that is easily dried for use in pestoes and other dried tomato recipes. The most common tomatoes planted, however, are the big Beefsteak or Supersonic varieties, or the Big Boy or Better Boy medium size tomatoes, very flavorful and heavy bearing..
Whether you have lots of garden space, just a small space in the flower bed, or only room for one potted tomato plant, it is definitely worth planting this easy to grow vegetable/fruit if only to have the fulfillment of juicy, flavorful taste all summer long.

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

2010-07-02T18:18:00.000-07:00

Calico wishes everyone a patriotic 4th of July from her A.J. Rahn Greenhouses friends and family! Have a safe 4th!

Perennial Tall Phlox

2010-06-20T14:39:00.001-07:00

Perennial Tall Phlox

Tall Phlox is a staple perennial plant in most sunny gardens. The newer varieties are displaying many vibrant colors while showing little of the mildew problems of the older varieties. Height varies by variety, but ranges from 18" -36" on very sturdy stems. Colors cover a broad spectrum from white to pinks and lavenders and reds, blooming from early to late summer. All varieties are fragrant and attract butterflies and hummingbirds.
As with all perennial plants, proper soil and light conditions will promote many years of enjoyment without having to replace them from year to year. Phlox thrives in full sun and well drained soil, and prefers to have good spacing for air circulation for best mildew prevention. Application of a general purpose slow release fertilizer in spring will bring out the best color and growth in your flowers for the whole summer.
Place these beauties in the back of your perennial garden for their height advantage, and save the front space for shorter perennials.

By: Sandy Weinkam
Gardening Expert at A. J. Rahn Greenhouses

2010-06-05T11:32:00.000-07:00

Succulents

Succulents are becoming more popular as houseplants due to the growing trend to save water by using plants that do not require a lot of moisture. There is great diversity of form, color, and texture in succulants that can be used in containers both indoors, and outdoors during the summer.
Succulents need high light levels, warmth, and good ventilation to thrive. During the growing season, feed succulents with a general purpose house plant fertilizer to help maintain growth and encourage flowering.
When repotting succulents into larger containers, the soil needs to be well drained. Use one part sand or grit to two parts soil-less mix. Choose containers that have drainage holes in the base. Succulents require more water when they are actively growing, which is usually in Spring and Summer. Use less water when they are resting during the winter.
Be on the lookout for our new shipment of cacti and succulents mid-June 2010.

By Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

2010-05-30T11:36:00.000-07:00

Dutchman's Pipe
Aristolochia littoralis

Dutchman's Pipe has an unusual looking flower that attracts butterflies and blooms all summer and fall. This vigorous climber with the Meerschaum pipe shaped buds and heart shaped deep green leaves will thrive in shade or part shade, in well drained moist soil conditions. It is zoned 5-9, so will survive the winter in our area of Greater Cincinnati. It will grow and climb 8-10' in height and flowers on old wood.
Application of general purpose fertilizer at the beginning of each growing season and then periodically throughout the season will bring a plethora of flowers to enjoy as well as marvel at their unusual looks. Their leaves are an excellent food source for Swallowtail butterfly larvae.
This plant is also known as the Calico Flower because of it's color when fully opened.

By: Sandy Weinkam
Gardening Expert at A.J. Rahn's Greenhouses

Hummingbird Attractors

2010-05-23T10:20:00.000-07:00

Hummingbird Attractors

Most of us fill our gardens with plants that we find to be beautiful. Fortunately, our plants not only attract our attention but also attract the attention of hummingbirds. Encouraging hummingbirds to visit during the spring and summer can be done by planting plants that they like and by supplying them with nectar by using hummingbird feeders.
There are a large variety of plants that attract hummingbirds. Although the color red is their favorite, you are not limited to using only red flowers. The following is a small sample of some of the flowers that commonly attract hummingbirds:

Bee Balm(Monarda), Colombine(Aquilegia), Butterfly Bush(Buddleia), Delphinium,
Hollyhock(Alcea), Trumpet Vine(Campsis), Cardinal Vine(Lobelia), Rose of Sharon,
Lantana, Fuchsia, Canna, Impatiens.

You may choose to further encourage these tiny birds to become frequent visitors by using commercial feeders. The proper nectar solution for a feeder is one part sugar to four parts water. Using a stronger solution could be too difficult for them to digest. Adding red food coloring is unnecessary since most feeders have red parts made to attract the hummingbirds. The solution should be changed every few days to prevent it from fermenting. In addition, the feeders should be thoroughly cleaned once a week with hot, soapy water and rinsed with boiling water. Filling the feeder with a small amount of food will help remind you to clean it before refilling with new solution.
Hummingbirds are very territorial, so hanging more than one feeder may help keep peace among males who visit the feeders. Feeders placed at different heights may also discourage aggressive behavior.
Providing water also encourages the hummingbirds to visit your garden. They find sprinklers and misters irresistible and will often bathe in the drips collected on the leaves of nearby plants.
Most gardeners love to share the beauty of their gardens with their friends. You will certainly want to count these beautiful and entertaining little birds among some of your most cherished friends.

By: Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

Wax Begonias

2010-05-12T18:53:00.000-07:00

Wax Begonia

One of the most common annuals for the spring, summer and fall growing season is the Wax Begonia. In praise of this 'lowly' plant, I would like to tout some of it's many virtues. First and foremost, it blooms all season until frost. It doesn't require deadheading. It will thrive in full sun or full shade and all light between. It grows in a beautiful compact mound and creates a perfect border. Colors range from white, to light and dark pink, to red, and the foliage can be a soft green to a dark burgundy. With proper watering and occasional fertilizer, these carefree plants will offer delightful color and shape to any garden setting! Seriously!

By: Susan Rahn
Gardening Expert at A.J. Rahn Greenhouses

Clematis

2010-04-26T18:17:00.000-07:00

Clematis
Pink Fantasy

Clematis are one of the most recognizable perennial plants in spring and early summer. With their huge flowers in a wide array of colors, they grace fences, lampposts, mailboxes and trellises in many neighborhood yards. Some are fragrant like the fall blooming Autumn Clematis (Paniculata), some have small bell shaped flowers (Betty Corning), but most come in large double and single petaled flowers. Certain varieties can bloom on new growth, some can only bloom on last year's growth, and many can bloom on both. Those varieties that bloom on new or both can be trimmed at any time, spring or fall, and will still bloom profusely. Those that bloom on old wood shouldn't be trimmed, or if necessary, only after the spring bloom is over so they have all summer to put enough growth on to bloom again next spring. Always check your garden store to determine which variety you are purchasing.
Especially the first year of planting, Clematis like to have their roots shaded from the hot summer sun, so plant a few annuals around your Clematis to keep it happy and thriving, and it's roots cool. A slow release fertilizer such as Osmocote applied in early spring will give your plant the boost it needs to produce lots of large flowers, then if you choose, you can give it a general purpose water soluble fertilizer every two weeks according to directions on your fertilizer product during the summer to encourage lots of foliage growth. Frequently, your Clematis will surprise you with a second flowering in fall as well! The first year be especially careful to water your new plant during dry spells so root production can get a good start. Once established, your Clematis shouldn't need any more care than you give to all your landscape plants.
Every year your Clematis will grow and fill in and produce more and more eye popping blooms than the year before!

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Jungle Geranium

2010-04-21T18:43:00.000-07:00

Ixora coccinea
Jungle Geranium

Ixora is a bushy, rounded shrub that has been popular as a hedge plant in subtropical regions of Florida. Originally from southeast Asia, Ixora plants thrive in at least four hours of direct sunlight a day. They prefer warm humid conditions which makes them a great plant for containers in our area in spring and summer, and as an indoor plant in fall and winter. Of course they don't normally reach shrub proportions in our area.
Their foliage is a glossy dark green, and most species have dense flower clusters appearing on the branch tips in red, yellow or orange petals. When potting these for containers use a mixture of 2 parts peat, 1 part potting soil, and 1 part sand or perlite. Keep the soil moist and fertilize with an acidic fertilizer every two weeks in spring and summer.
These plants look lovely in containers , in tropical deck settings, or pool side, and attract butterflies and hummingbirds all summer long!

By: Michelle Lynn
Gardening expert at A.J. Rahn Greenhouses

White Daffodils

2010-04-12T17:29:00.000-07:00

Spring Daffodils

Early spring flowers are in their final stages, and after Easter flower rush week, we are moving forward into mid spring second round plantings of many annuals, vegetables and herbs. The third wave of lettuce has been seeded, and the first two sets have sold out. We are waiting for the plants to get big enough to put out for sale. Basil, cilantro, parsley and other herbs have been seeded, as well as squash varieties of vegetables, eggplant and many more. Tomatoes and pepper seedlings were transplanted from seed trays to peat pots. With over 20 varieties of tomatoes and 20 varieties of peppers, this took more than a week of continuous planting.
Also on the list of plantings were patio pots of double impatiens and New Guinea impatiens. The impatiens bags planted three weeks ago are coming along nicely and filling out all their little niches. The never ending planting of petunias goes on and on. Tops on the list last week was the start of the wave petunia plantings. This will probably take up to two weeks to complete.
To keep up with our planting team, someone has to make up the soil mixes, fill pots and flats, tag each pot, then move them into their growing houses. Many hands go into accomplishing all these tasks to get the plants to retail, and everyone pitches in. Whatever needs to be done at any given moment to keep the flow going, someone will pitch in to keep the ball rolling.
On sunny days, which we've had a lot of recently, watering becomes a top priority. All those plants being planted won't amount to much if not watered when they need it. Sometimes planters have to stop to help water to keep up. Some plants will not need to be watered as often as others, but on sunny warm days almost everything will need a drink at least once a day, and seeds won't germinate without being kept moist.
Finally, most of our nursery stock came in last week, including lilacs, forsythia, and viburnum, all of which are blooming now in the neighborhood. Also, creeping phlox is looking like lovely carpets out in the yards and ours are ready as well. Roses have been put out for sale this past week, and everyone is anxious to get their hands on the newest varieties such as yellow Monkey Business and Ch Ching.

By: The Production Staff

Dicentra spectabilis

2010-03-28T14:09:00.001-07:00

Dicentra spectabilis
Bleeding Heart

A favorite perennial in Grandmothers garden and still a favorite today is the Bleeding Heart. This very hardy perennial is an early blooming, feathery foliage plant that will thrive in sun or part shade. It really prefers afternoon shade though, as our very hot humid summers in the Midwest will cause it to go dormant early. It works well with ferns, which will hide the foliage going dormant when the weather really gets hot. It is hardy in zones 1-9, and will reach 2-4' in height with a spread of 18-24". Pink heart shaped flowers in abundance form along arching stems in late spring to early summer.
Best soil composition is moist, fertile, well drained, and humus rich. Fertilize in spring with organic fertilizer like compost or aged manure. If you need to move or divide this plant, it's best to do it in early spring when it just begins to emerge from the ground.
This perennial is also available in white blooming hearts ( alba), as well as the newest red variety called Burning Hearts, both varieties of which we carry. The King of Hearts variety has pink hearts, but the foliage is much lacier looking than the spectabilis types.

By: Sandy Weinkam
A.J. Rahn Greenhouses

Rose Progress

2010-03-28T12:28:00.001-07:00

Roses Four Weeks Later

Roses Mid February

As you can clearly see from the above two photos, the warm sunny weather the past few weeks has moved the roses from barely breaking dormancy to full fledged foliage growth. As we walk past the greenhouses each day, we don't see the dramatic change as much as when we look back on that first photo published four weeks ago. Before long we will be moving them out of the greenhouses into the field to give them more room to grow and allow them to harden off (get used to the outdoor temperatures) before setting them out for sale.
This past week has seen a continued effort to get everything planted up so all the annuals and vegetables and herbs have time to reach sale maturity. Cosmos, beets, and zinnia seeds were sown, while begonias both wax and dragonwing were transplanted into their final pots. Also transplanted this past week were impatiens, dahlias, verbena, and pentas. Belden baskets of impatiens were planted up in a myriad of colors. Belden baskets are hanging baskets with holes all around the sides of the basket where plants are planted in each of those holes as well as in the top of the basket. This creates a very full look both on top and all around the basket.
Cuttings were taken of some of the more unusual colored coleus plants to root them and double or even triple the number of these that will be available for sale in May. Our greenhouses are filling up fast with all these annuals and vegetables. Of course our planting would not be complete without transplanting more of literally thousands of petunias! We never seem to be finished planting these popular annuals.
Finally, all the pansies have been brought out of their winter greenhouses into the retail area. They bring so much color and spring feel to your garden, and even though we had a surprise light snow Thursday night, it didn't affect those little beauties one bit. We are also enjoying all the daffodils around our greenhouses that are now in full bloom after the crocuses just completed their bloom cycle.

By: The Production Staff
A.J. Rahn Greenhouses

Coleus Planting

2010-03-22T17:50:00.000-07:00

Coleus Planting

This past week we continued our frantic pace of planting and seeding for spring. Tomatoes, herbs, and lettuces were seeded, as well as marigolds. Hanging impatiens pouches were planted in ten different solid colors, and a color mix . Impatiens baskets were also planted and hung in various houses to continue their growing cycle. Begonias, coleus, dahlias and snapdragons topped the list of other seedlings transplanted by our hard working crew. Special mention this week to our crew who place all these many trays and hanging baskets in their special growing houses. It's a back breaking, knee bending, up and down ladders kind of job, and we couldn't keep up the planting pace without their hard work!
Another warm, sunny, dry week once again kept the watering crew in their boots for most of every day. The plants are growing by leaps and bounds with all this gorgeous weather! A final disbudding of the Easter Mums was completed this past week. This process involves taking all the side flower buds off each stem of the mum plant, leaving the center bud. By doing this, the center bud develops into quite a large showy flower, creating a beautiful full plant for decorating your table.
The first of the early spring blooming perennials were brought out for sale. Many of these were planted last summer and fall as bare root, or seedlings or bulbs, and kept in greenhouses throughout the winter at just about 32F. Iberis, Bleeding Heart, Arabis, Polemonium and Forget Me Nots are all out and blooming now. Pansies and Violas are literally flying out the door, so we're also kept busy stocking the tables to keep up with the demand.

By: The Production Crew
A.J. Rahn's Greenhouses

Geranium Planting

2010-03-14T13:25:00.000-07:00

Planting Geraniums

This week started the march to Easter among the many tasks at hand. Potted bulb plants that were planted in early December (tulips, daffodils, hyacinths) were brought out of cold storage to begin forcing them for Easter week bloom. Azaleas as well were put in a warmer greenhouse to force for Easter.
Hanging baskets of cherry tomatoes were planted, and herb seeds planted a week ago are now beginning to sprout.
Debudding Geraniums that are just starting their growth spurt was done so the plants have a chance to put more effort into foliage and root growth for a stronger, healthier plant. There will be ample time for blooms to set later. Pictured above are a few of the thousands of Geraniums being planted in 4 1/2" pots. Scented Geraniums were also being planted for an extra bonus in your garden or window boxes, providing lovely scents to accompany the beautiful blooms. Citronella scented Geraniums even provide mosquito deterrence around your deck or patio!
Since most of the week was relatively warm and sunny, watering and fertilizing became top priority for a major part of each day.

By: The Production Staff
A.J. Rahn Greenhouses

Shamrocks

2010-03-14T11:41:00.000-07:00

Shamrocks
Oxalis

Oxalis are best known as Shamrocks, the easily recognized symbol of Irish pride. Surprisingly enough, they are actually natives of the mountain areas of South America and Mexico. Some of the more hardy varieties have became popular in Northern Europe and North America.
This plant is grown from tiny bulbs or tubers. They prefer a bright sunny windowsill and like to dry out slightly between waterings. When they get too hot in the summer they can go dormant. They may also go dormant if neglected and allowed to dry out. Once the dead growth is cut away and watering is resumed, they will sprout new leaves in a few days.
Oxalis are generally problem free and most insects will not bother them. Given bright sun, moderate water, fertilizer every other week or so, and well drained soil, they should be an easy, enjoyable plant whether it's St. Patrick's Day or not.

By: Gayla Parker
Gardening Consultant at A.J. Rahn Greenhouses

Rex Begonia Vine

2010-03-11T18:02:00.000-08:00

Rex Begonia Vine
Cissus discolor

The Rex Begonia Vine has beautiful oval shaped leaves that are a dark green with frosty silver patterns on the upper side, and a deep burgundy red on the underside.
As a houseplant, it prefers a brightly lit room. After danger of frost, it loves to be outdoors in part to full shade with warm temperatures and high humidity.
The Rex Begonia Vine is a tendril (climbing) grower and can be used on a trellis or in a hanging basket. During the warmer growing season fertilize with houseplant fertilizer according to directions.
Calico advises: this plant would make a beautiful, fascinating addition to your summer shade garden!

By: Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Maidenhair Fern

2010-03-06T14:02:00.000-08:00

Maidenhair Fern
Adiantum raddianum

Maidenhair ferns are one of the most airy, delicate looking houseplants popular today. Their clouds of wedge shaped, vivid green leaflets are born on slender, graceful black stems. They make wonderful terrarium plants as they thrive in high humidity. If not used in a terrarium, a moist pebble tray under the pot will suffice. Placed in indirect light on a north facing windowsill, or in a room with bright indirect light, they will bring years of enjoyment. Water daily with filtered water, or water that has set overnight to dissipate the chemicals. Fertilize biweekly with half strength houseplant fertilizer, less frequently in winter months. When repotting, use standard soil mix with high peat content.
If the soil is kept moist and the humidity high, this beautiful plant will flourish and bring an air of elegance to your houseplant collection.

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

New Guinea Impatiens

2010-03-06T12:58:00.001-08:00

New Guinea Impatiens

This past week was once again a planting frenzy, as we transplanted a whole greenhouse full of New Guinea Impatiens.
Herbs of about 30 varieties were seeded or transplanted for spring.
Hanging baskets of Geraniums, Petunias, and Boston fern were planted, priced, then hung in greenhouses to complete growing for spring sales.
New cuttings of Plumbago, Ivy, and other vining filler plants were taken and placed in a rooting medium to develop a root system before being transplanted about 4 weeks later into 4" pots.
The first tomato seedlings were transplanted into 4 1/2' pots for early container planting or planting in a protected area before May 15th, for those who just can't wait to get started!
Soils are made up many times a day in different mixes to achieve optimum plant health. It may come as a surprise to many to realize different plants have different soil needs.
Two more greenhouses were cleaned and sterilized for the asparagus, rhubarb, strawberries and all the herbs and other vegetables being planted this week.
The roses planted two weeks ago are budding out nicely, and with sun and a little warmer weather, they will be bursting out!

By: The Production Staff at A.J. Rahn Greenhouses

Pansies

2010-02-28T18:47:00.000-08:00

Pansies

Pansies, without question, are one of the most exciting plants of spring. I don't believe any other plant causes the excitement that pansies do. When people first see them in the spring, smiles are everywhere.
There are some who believe pansies need to be planted in the fall for spring bloom. We believe the best spring pansies are still planted in the spring. In most cases the fall pansies take so much longer to get going the following spring than fresh spring plants. I won't say fall plantings don't work for spring, but generally spring planting is more successful. There is no difference in the varieties, it's just when they are planted. Also, the term "winter" pansy is a marketing concept. All pansies are cold tolerant. Some varieties of pansies, however, have been hybridized to be more heat tolerant to last longer into the warm season.
Pansies love cool weather and snow does not hurt them. (Actually when they are covered in snow, do not brush off the snow.) As soon as the soil is thawed from winter they can be planted. Most years in the tristate area, this usually is in March, although I remember some Februaries when this was do-able.
As you take them out of the pot to plant, it's best to loosen the roots. Plant them level in the soil of your container or in the bed and water them in well. After they're planted, sometimes when springs are unusually cool, it's difficult to tell if the soil is truly wet or if it's just cold soil. Probably the soil is dry if you haven't watered too recently, so go ahead and water well. Pansies do get thirsty, so be sure to check them; however they need to be dry between watering's.
Pansies don't require a lot of fertilizer but occasionally fertilizing with Jack's All Purpose is great!
Dead-heading is not necessary but it does help them to look fresher. Sometimes, if the season is unusually warm, dead-heading will prolong the bloom time. It does curb the build up of seed pods. If annuals believe they have produced enough seed they sometimes feel they don't have to bloom any longer; they've done their job! Personally, I dead-head my pansies twice a season.
Panolas are a relatively new hybrid, a cross between a pansy and a viola. They have a high bloom count like violas with a gorgeous color spectrum like pansies. The blossoms are medium size and there are lots of them. Panolas are great because they are very showy and full of color. A.J. Rahn Greenhouses carries this new variety as well as a full color complement of pansies and violas.

Behind the Scenes Feb. 26, 2010

2010-02-28T18:01:00.000-08:00

Newly Potted Roses

This week we are starting a new section on our blog to give you a peek at what goes on behind the scenes, sometimes months before the plant ever appears for sale. Hopefully, this will bring everyone to a deeper appreciation of what goes into getting seeds ,cuttings, bare root plants, and plugs to quality finished plant, and how long it may take to get them there.
Some of the tasks accomplished this past week included; seeding of some spring vegetables, including eggplant; planting million bell hanging baskets with plants that were started weeks ago; taking ivy and vinca vine cuttings to be rooted and grown for selling in spring; and completing the planting of over 400 varieties of perennials.
Greenhouses that have been closed over the past few months are being cleaned and sterilized in preparation for all the annuals being planted for spring. Speaking of planting, you wouldn't believe all the pots we use on a daily basis, not to mention soil and fertilizer!
This week concluded with final planting of approximately 2100 bare root roses from Jackson & Perkins and Weeks, including four of the newest varieties: Pumpkin Patch, Sedona, Ch-Ching, and Monkey Business. This represents only four of 125 varieties we will have available. We will also have tree standard roses in 2' & 3' sizes, as well as a double ball topiary standard.

By: The Production Staff
Planters and Growers at A.J. Rahn Greenhouses

Houseplant Topiaries

2010-02-15T17:53:00.000-08:00

Topiaries

Topiaries were first created for outdoor use. However the concept of a living sculpture is also a popular way to grow and display several types of indoor houseplants and tender herbs.
Ivy is probably the houseplant most commonly used as an indoor topiary. Ivies grown indoors prefer to be kept in a bright light location with moderate temperatures. It is beneficial to rotate them to the light source to maintain a full and balanced appearance.
Dry warm air caused by heating and cooling systems can rob topiaries of some of their moisture. It is helpful to treat Ivy topiaries with a monthly shower of water or a mild solution ( 1 tsp. to 1 gal.) of Dawn or Joy dish detergent. This rinses the dust off the foliage, thereby discouraging spider mites.
Allow the Ivy topiary to dry out between waterings, then drench the plant thoroughly. Fertilize every other watering with half strength houseplant fertilizer.
The shape of topiaries can be maintained by pruning or winding the tendrils around the topiary frame. Remove any dead leaves or dying stems that may appear.
Other houseplants can also be used to create a living topiary. Angel Vine and Jasmine have a more delicate leaf shape and create a lovely appearance. The herb Rosemary is frequently displayed in topiary form and gives the added pleasure of it's wonderful fragrance.

By Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

2010-02-03T06:13:00.000-08:00

Cineraria
Senecio cruentus

Cineraria is a popular florist plant that makes a lovely centerpiece for your table. Available February through March, it's masses of daisy like flowers in a broad spectrum of colors will add splash and cheer to mid winter grays outside. The flowers rise above beautiful foliage, some varieties of which have colorful undersides to their large leaves as well. Cineraria do not like to be in direct sun, but a well lit location is ideal.
The soil should be kept moist, but not soaking wet. These beauties prefer cool temperatures: 60-65F during the day, 55-60F at night. Treat this plant as an annual and discard after it is finished blooming. It should bloom for several weeks once it is fully open though, much longer than a fresh bouquet of flowers!

By Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Primrose

2010-01-28T18:58:00.000-08:00

Primrose
Primula acaulis

Tired of winter's cold gray weather? The perfect pick me up is to stop in the greenhouse for a few of these brightly colored, sweetly fragrant plants. Their color palette ranges from white to red, to shades of yellow, pink, and deep purple. Large numbers of these bright beautiful blossoms are clustered in the center of the leaves' rosette pattern, creating a nestled bed of color in the midst of dark green paddle shaped foliage.
Primrose prefer cooler temperatures (55-60F), but will do quite well in your house if you can stay around 67-68 degrees. An east or west facing window sill where they will receive lots of bright indirect light and perhaps cooler temperatures would be best. These plants want to be moist but not wet all the time, so water only when the soil surface feels slightly dry to the touch. Remove dead flowers by pinching them off near their base, and fertilize according to directions on your fertilizer package. In spring after danger of frost, you can plant these perennials outdoors in semi shade in well drained soil. With some winter protection, they will be up again in spring with the crocuses, once again delighting you with riots of color to chase away the winter blahs.

By Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Gardenia

2010-01-24T14:26:00.000-08:00

Gardenia

It is hard to find a more beautiful and fragrant plant than the Gardenia. However, it can be a temperamental beauty.
The Gardenia needs bright light but not direct sunlight. It prefers cool temperatures at night (55-65F), and slightly warmer during the day, and also requires a humid environment which can be accomplished by standing the pot on a large tray of pebbles which are kept wet at all times. Keep the soil evenly moist and water with tepid or lukewarm water. When fertilizing, use an acid based fertilizer.
The Gardenia can be moved outside in late spring when there is no longer a chance of frost. A north or northwest location out of direct sunlight is ideal. Remember to keep the soil moist, and this plant will bring you many years of beauty and fragrance.

By Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

Orchid Cactus

2010-01-13T07:43:00.000-08:00

Orchid Cactus
Epiphyllum

Orchid Cactus are very unique plants. Their native habitat is the jungles of south and central America and Mexico, but they will perform well as indoor houseplants if given some extra humidity. Humidity can be enhanced by placing a pebble tray with water in the pebbles under the plant pot. Their very fragrant flowers come in nearly every color except blue and are typically five inches across. They bloom spring through early summer when temperatures are warmer and daylight hours are longer. They need room to grow, at least a space three feet wide, that receives medium light. Morning or late afternoon sun, but no hot direct mid afternoon sun are the ideal lighting conditions. They prefer a rich well drained soil, and require very little fertilizer, preferably in early spring and then once more after blooming. Because their thick fleshy stems retain water well, they really only need to be watered once or twice a week spring through fall, then very sparingly during winter.If you supply your Orchid Cactus with these growing conditions, you will be rewarded with beautiful fragrant flowers year after year.

By Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Christmas Cactus

2009-12-23T12:54:00.000-08:00

Christmas Cactus

Christmas Cacti have been favorite holiday houseplants for many years. They are easy to grow, and if given proper conditions will bloom regularly every Christmas. They come in a myriad of bright holiday colors including red, pink, and peach, as well as white. Despite the cactus name, these plants do not like to get desert dry between waterings like true cactus plants do. These are native to forests in Brazil and are frequently found growing in the crooks of branches in tropical forests along with orchids. Thus they prefer to be watered thoroughly when the surface of the soil is dry to the touch, then allowed to dry to the touch again before watering.
To encourage blooming, place them in a cool place, preferably around 50F for a few weeks, and cut back on water during this period. Once they set bud, keep them away from cool or warm drafts and resume proper watering, otherwise your buds will fall off without maturing into full flowers. Don't fertilize them during their flowering period, and allow them to rest for a month or two after flowering before resuming fertilizing. Any houseplant formula fertilizer will suffice according to directions on your fertilizer package. In the house they prefer bright indirect light, and can be placed outdoors in the spring and summer in a shady area.
Christmas Cacti prefer to be tight in a pot, but if repotting is necessary wait until early spring and use a well draining soil mixture. Choose a pot size only one size larger so as not to stress the plant. They also take well to pruning and shaping, but again wait until early spring to tackle this task. Leaf segments from pruning root easily in a rooting medium, allowing you to share this wonderful plant with others.
If you care for your Christmas Cactus properly, you will be enjoying it for many years. A number of people have related how they have inherited these plants from their Grandparents and know they are 30-40 years old! A true testament to their longevity and easy care!

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Norfolk Island Pine

2009-12-10T17:11:00.000-08:00

Norfolk Island Pine

The Norfolk Island Pine is not a true pine, but a conifer that originated on Norfolk Island off the coast of Australia. Each year it produces one new whorl or layer of symmetrical branches which are wider than the previous ones, giving it the appearance of an upside down spruce or fir. It's formal appearance makes it a great replacement for the indoor family Christmas tree, decorations and all!
This tropical plant needs medium light, but will tolerate low light for a short period of time. Keep it evenly moist, and humidity will help it retain it's lower branches. It is a slow grower, so use half strength all purpose fertilizer during the spring and summer growing season. Try to avoid pruning, as it reacts negatively to this process.
If you choose to try this as an accent Christmas tree, use only very light, tiny ornaments or decorations as the branches are not thick enough to support heavy decorations.

By: Doris Koop
Gardening Expert at A.J. Rahn Greenhouses

Poisonous Poinsettias?

2009-12-07T17:27:00.000-08:00

Poisonous Poinsettias??

Every year during the holiday season, we find it necessary to discuss an "Old Wives Tale" that continues to persist about poinsettias. It is alleged that parts or all of the poinsettia plant are poisonous to pets and/or people. This is definitely Not True! Poinsettias are not poisonous to people or pets. The Ohio State University in 1971 ran extensive studies on the toxicity of all parts of the poinsettia plant. This study was done in response to a movement to place safety caution tags on all plants deemed poisonous. Results of these tests were conclusive that no part of the poinsettia plant was poisonous to people or pets. At the time, the studies were reported on all news media, but every year since then, the myth has persisted. This is primarily due to lack of knowledge on the part of newscasters and, surprisingly, veterinarians.
So fear not! Enjoy the beauty of this seasonal house plant during the holidays, then cut them back in March and they will make great foliage plants outdoors in the summer.

Amaryllis

2009-12-03T18:25:00.001-08:00

Amaryllis

If you believe that "the bigger the better", then the Amaryllis is the flower for you. Amaryllis blooms can be 8-10" across, and frequently produce 3-4 flowers at a time atop each thick 1-2' tall stems. Colors include shades of whites, pinks, and reds, with new colors being hybridized every year.
Amaryllis appreciate tight quarters, so use a standard pot that is 2" larger in diameter than the bulb. When potted, the bulb should be about half to one third out of the soil. After potting, water the bulb thoroughly, then wait until the bulb begins to show new growth. When it does show new growth, begin watering it whenever the soil surface is dry to the touch.
Amaryllis prefer a bright window with at least half a day of sun. Fertilize once a month. After flowering, continue to water and fertilize.
In early fall, slow down on water until you are not watering at all. This plant needs 4-6 weeks of rest (No Water). After this rest period, cut off all yellow leaves and then lightly water. Watch for new growth to begin before returning to a regular water and fertilizer schedule, then watch your beautiful plant flower once again.

By Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Ornamental Cabbage and Kale

2009-11-24T17:33:00.000-08:00

Ornamental Cabbage & Kale

For late fall and early winter color in containers or in your garden, flowering cabbage and kale plants are excellent choices. These hardy outdoor plants will withstand frosts and even snow, becoming more colorful the cooler it gets. They come in flowering colors of white, pink or rose. The kale plants have a much lacier and crinkled foliage compared to the cabbage which has a much smoother leaf structure. Also, both cabbage and kale can have a very green or a more burgundy colored leaf color as well. Plant these beauties in full sun for the best color, and water when dry. No fertilizer is necessary, as these plants will finish their life cycle usually by late December or early January depending on temperatures.

By Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Lemon Cypress

2009-11-14T18:47:00.000-08:00

Lemon Cypress
Cupressus Macrocarpa

This bright green tropical cypress plant will be a welcome addition to your houseplant collection. It is easy to grow, has a light lemony scent when the needles are pinched lightly, and the bright color will liven up any area of your home. The needles are soft and feathery in texture, giving it a unique feel and look. Bright light is best for the full color of your cypress indoors, and they prefer moist but not soggy water conditions. Do not let them dry out as they will brown on their tips.
Fertilize as you would any of your indoor plants, less in winter months. In spring after night time temperatures remain above 55F, you can place them outdoors in full sun or light shade. Keep in mind the watering needs, however.
These plants take well to pruning, and can be formed into topiaries of different shapes quite easily.

By Doris Koop
Gardening Expert at A.J. Rahn's Greenhouses

Toad Lily-Tricyrtis

2009-11-14T18:30:00.000-08:00

Tricyrtis
Toad Lily

A small but beautifully formed fall blooming perennial flower is the common toad lily. This very hardy plant prefers part to full shade for optimum growth. The leaves are lance shaped, some dark solid green, other varieties have a cream to yellow edging. Orchid shaped flowers sit atop arching stems above the foliage. Their flower colors include white, lavender, and pink, usually spotted and/or streaked with purple spots.
Planted in masses, they present a unique fall look, and make very sweet delicate cut flowers.
Fertilize in spring with a slow release fertilizer, then enjoy their special fall showing!

By: Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Homalomena 'Emerald Gem'

2009-10-25T18:17:00.000-07:00

Heart Leaf Homalomena
'Emerald Gem'

This plant is a relative of the Philodendron family, and is native to the deep shade forests of South America. The heart shaped foliage of the Emerald Gem variety is a deep green with a waxy look. It will grow in lower light situations than most foliage plants, but grows best with moderate indirect light.
If you keep the soil evenly moist, fertilizing lightly during winter months, more regularly during the growing season, this houseplant will grace your home for many years. The Homalomena is a slow grower, however, so choose a plant at about the size you need for the space you want to place it in.

By Doris Koop
Gardening Expert at A.J. Rahn Greenhouses

Perennial Sedum

2009-10-25T18:02:00.000-07:00

Sedum

Sedum grow in a wide range of heights and spread. From very low creeping groundcover varieties, to tall upright varieties, these hardy perennials are perfect for most gardens. Their thick fleshy leaves indicate a wonderful water retention ability even in the most severe drought.
Low spreading types make a tight weed resistant groundcover or weep gracefully over rock walls in sunny dry areas. Many of this type are evergreen and bloom in early summer.
Upright varieties come in short to very tall heights and have a more clump forming habit, some clumps large enough to be more like a shrub. The flower heads begin forming during the summer, then explode in colors of pinks and burgundy just in time for autumn leaf changing season.
All sedum varieties are low maintenance, requiring little water or fertilizer to thrive in your garden.

By Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Bird of Paradise

2009-09-21T17:27:00.000-07:00

Bird of Paradise
Strelitzia Reginae

Bird of Paradise is a stemless member of the banana family. The large leathery leaves are very dramatic, but the real show is the long lasting flower that is surrounded by a bract folded into a boat shape. The bright orange and sky blue petals emerge from it and look like an exotic bird head. It takes quite a few years for the plant to mature enough to bloom.
Bird of Paradise likes a sunny location and should be kept evenly moist. Fertilize every two weeks per fertilizer package instructions.

By Doris Koop
Gardening Expert at A.J Rahn Greenhouses

Houseplants in for the Winter

2009-09-21T17:07:00.000-07:00

Houseplants in for Winter

It's best to bring houseplants inside when night temperatures start to drop to around 50 degrees. Some plants tolerate cooler temperatures in the 40's, and can remain outside for a while longer. These include Cymbidium and Phalaenopsis orchids, as well as Christmas Cactus.
Houseplants do need to acclimate to the lack of humidity and lower light levels inside the house, so place them near a window and offer more humidity with a pebble tray under the plant and keep the tray moist. Inspect your plants for insects and insect eggs before bringing them in. Spray with an insecticidal soap or use a systemic houseplant insect control even if you're not sure they have them.
Remember, most plants need less water and fertilizer during their winter rest time indoors since there are fewer daylight hours and less than ideal growing conditions.

By Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Fall Plants

2009-08-31T18:14:00.000-07:00

Cool Temperature Plants

The end of summer signals the beginning of the fall planting season. Our gardens can continue to look beautiful well into autumn by planting some of the cool weather loving plants. The colorful leaves of the perennial Heuchera and ornamental grasses can be mixed with Calibrachoa (Million Bells), and Argyranthemum. Seasonal favorites such as mums,asters, and pansies can replace some of the summer annuals for a fresh new look. Ornamental kale and cabbage last well into late fall and early winter.
Gardens may be saying good bye to summer, but they can also be welcoming the cool crisp days of fall.

By Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

Orchids

2009-08-25T14:37:00.000-07:00

Orchids

Orchids are an extremely varied group of plants. Most orchids fall into two categories; those requiring intense light such as Phalaenopsis and Cattleya, and those preferring medium to bright light such as the Paphiopedilum. Those requiring bright intense light would be best placed on a south facing window ledge with some shading from direct midday sun in summer. Those of medium to bright light would be best suited to an east or west facing window ledge. They would also do well under fluorescent lights.
Varieties with thick leaves should be watered thoroughly , then allowed to dry out before the next watering. Those with thin roots and smaller leaves generally need water as soon as the potting mix starts to dry. Most orchids need a short period of dry conditions in autumn to stimulate new flowers.
Although some orchids tolerate average humidity, it's best to offer them high humidity indoors. You can provide humidity by placing a saucer with pebbles and water covering the pebbles under your orchid pot.
Allow roots to extend beyond the pot as long as the plant continues to grow. When growth is inhibited, repot into a container one size larger in diameter than the original container, using an appropriate orchid potting mix.
Fertilize year round, full strength during the growing season of spring and summer, half strength during fall and winter according to directions on your fertilizer.

By Doris Koop
Gardening Expert at A.J. Rahn Greenhouses

Cacti & Succulants

2009-08-17T19:08:00.000-07:00

Cacti & Succulents

Succulents are defined as any plant which has the natural ability to store water in it's roots or body. They usually have fattened leaves or thick stems that hold water in reserve for dry climactic conditions. Cacti are a type of succulent. Both cacti and other succulents are relatively easy care plants to grow, as they are very tolerant of neglect.
They have a dormant season when they rest, usually during winter months when daylight is short; and a growing season, when daylight hours and warmer temperatures trigger a growth response. Water according to the cycle they are in. If dormant, water sparingly, every few weeks and only enough to dampen the roots slightly. During the growing season, water thoroughly once a week, but only if they are receiving lots of daylight.
Also, fertilize only during the growing season, per instructions on the cacti fertilizer package. They prefer a formulation of 5-10-5 or a similar cactus fertilizer.
They will grow best in as much sunlight as you can give them, for instance a south facing windowsill, or you can place them outdoors in the summer. Most are not frost hardy; however, the prickly pear cactus is and will winter over in our hardiness zone(5-6).
There are a multitude of varieties available in the succulent plant species, from those varieties with thorns, to those without any prickly points to them. Check out a book on the many types at your local library, or online, or stop in to see Calico's selections at the greenhouse.

By Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Bouganvillea

2009-08-09T13:17:00.000-07:00

Bouganvillea

If you are looking for a great plant for sun and heat, look no further. Bouganvillea plants thrive in the tropics in areas of low rainfall and intense sun and heat. Plant or place Bouganvillea in full sun, keeping the plants on the dry side especially if you want lots of blooms.
Bouganvillea bloom best when pot bound, and make great container plants for a south or west facing deck or patio. Fertilize with a water soluble plant food at half strength every ten days during the growing season.
When bringing indoors for the fall and winter, give the plant a hard prune and place in a brightly lit room, watering sparingly until early spring.

By Michelle Lynn
Gardening Expert at A.J. Rahn Greenhouses

Perennial Hibiscus

2009-08-01T19:54:00.000-07:00

Perennial Hibiscus

Perennial Hibiscus are wonderfully easy plants to grow. They are not picky about soil, but prefer a soil amended with peat and compost. They grow best in at least 6 hours of sun, but would really like more. They bloom from July through August, according to variety, in a wide range of colors from reds to white and pinks and plum. Their blossoms are real eye catchers as they can be from 6-12" in diameter.
These perennials die back over winter, then emerge as one of the last to appear in late spring. They spend the early summer getting up to 4-6' high before buds begin to appear and the eye popping flowers open. Each flower lasts only one day, but once the plant is established will have many buds opening for up to a month or more. Water these plants frequently until they are well established (usually a year), thereafter only when it becomes very dry. Fertilize with an all purpose plant food when they begin to emerge every spring, then sit back and watch it take off to produce many years of enjoyment.
Calico checks on these beauties, pictured above, every day growing in our greenhouse garden. Stop by to see our selection soon!

By Sandy Weinkam
Gardening Expert at A.J. Rahn Greenhouses

Perennial Plants

2009-07-23T07:43:00.000-07:00

Perennial Plants

Perennial plants, those that come back year after year, can be used to create colorful gardens throughout the early spring through fall season. Some varieties thrive in full sun, while others prefer part to full shade.
Some full sun varieties such as Cranesbill (Hardy Geranium) and Platycodon (Balloon Flower), give long lasting color all season. New varieties of coneflower (Echinacea) called 'Mac N Cheese' and 'Tomato Soup' have "deliciously" vibrant colors! A dwarf variety of butterfly bush (Buddleia), 'Lo and Behold', displays beautiful blue flowers that attract butterflies and hummingbirds.
Some of the more popular part shade perennials such as Heuchera (Coral Bells) and a plethora of Hosta varieties will provide season long color with their foliage.
An added bonus to a majority of perennials is their ability to be divided and planted in other areas of your garden or shared with neighbors and friends. They can be planted spring, summer, or fall, but are best divided during the spring season.
Calico suggests you stop by to see our selection before they disappear!

By Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

Jade Plant - Crassula ovata

2009-07-12T18:56:00.000-07:00

Jade Plant
Crassula ovata

The Jade plant may be one of the most familiar houseplants, with it's thick branches and succulant dark green leaves. It is very adaptable to low or high light, but does best when it receives bright indirect light. As with most succulants, the jade prefers to dry out between waterings, and overwatering will lead to stem rot.
Fertilize during the growing season with an all purpose houseplant fertilizer according to directions on the package, but refrain from fertilizing during the fall and winter months.
Mature plants will bloom with hundreds of star shaped white to pale pink blossoms. Cool, dry conditions for several weeks followed by regular watering will help trigger blooming.

By Doris Koop
Gardening Expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-07-06T18:19:00.000-07:00

Flowering Maple-Chinese Lantern
Abutilon hybridum

The flowers of this plant resemble a cross between a Hibiscus and a Hollyhock. Abutilon come in many colors including white, red, yellow, and shades of peach. The leaves are a pale green, but also come in a variegated form.
They perform best in partial sun, as high heat may force them out of bloom. Fertilize them monthly with 20-20-20 all purpose plant food. Keep soil evenly moist.
These upright growers make great container plants with their abundant blooms and unusual texture!

By: Michelle Lynn
Gardening expert at A.J. Rahn Greenhouses

Daylilies Hemerocallis

2009-07-04T12:39:00.000-07:00

Daylilies - Hemerocallis

Daylilies have been cultivated for over 2500 years and are a very low maintenance perennial. They are available in a rainbow of colors , with the exception of blue. Some bloom only once a season, others are repeat bloomers, and a few will bloom all summer long. Some are fragrant, while others will hold a bloom for more than a single day.They are hardy in zones 3-9, and vary in height from 12" -36". In the landscape they prefer rich, well drained soil in full to part sun. Water requirements are not overly agressive as they do quite well on average watering(in ground- about twice a week if no rainfall has occurred). They also attract butterflies and hummingbirds, making your garden come alive with even more color!

By: Sandy Weinkam
Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-06-13T17:32:00.001-07:00

Anthurium

There are over 900 species of Anthurium, both flowering and foliage plants. Of these, the best known are the flowering plants.
One might think that the flower is the large leaf like bract, called the spathe, but it is really the tiny spikes on the spadix of the bract that is the true flower. The bracts are the primary attraction and will last a month or more. Anthurium are repeat bloomers, providing color for a long time. The colorful bracts are often used in cut flower arrangements.
Anthurium prefer medium to bright light. Water thoroughly, then let dry slightly before watering again. Avoid cold drafts and feed during growing periods.

By Doris Koop
Gardening Expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-06-08T18:52:00.000-07:00

Scented Geraniums-Pelargonium

These plants are called scented geraniums because they have fragrant foliage. Many scented geraniums are extremely decorative due to their unique leaves.
Essential oils from scented geraniums are used in perfumes and colognes. Scented geraniums also have culinary uses. The leaves can flavor cakes or can be used as a garnish.
Scented geraniums are easy to grow, both indoors and out. Bright light and well drained soil are required. Do not over fertilize your scented geraniums.
Among our varieties are citronella and an intense lemon- scented variety. Touch them and you will see why they are called scented geraniums!

By Michelle Lynn
Gardening Expert at A.J. Rahn's Greenhouses

Susan's Classroom-June Care

2009-06-01T18:35:00.000-07:00

Susan's Classroom-June Care

June is upon us and it's time for "Cincinnati summer". We've really had a beautiful spring, some say a little on the wet side, but that's ok. Hibiscus, Mandevilla vines, and Caladium are a few plants that thrive in hot humid weather. Mandevilla won't even bloom unless it's very warm, and Caladium will go dormant if night temperatures drop below 55F. Now that it is getting very warm, it's time to turn up the watering. Adjust to the flow of the weather, and don't let a few showers fool you into thinking the rain was enough to get to the roots of the plants. Feel the soil down about an inch near the plant and respond accordingly. If the soil is wet, don't water. If it feels dry, water it thoroughly so the water gets to the roots where the plant can use it. Remember that hot, sunny, or windy days will dry out plants very quickly, especially if they are newly planted. This is true for shrubs and trees too, and they should be watered even more deeply. Your plants are depending on you to keep them at their blooming best all summer, so don't hide out in the air conditioning and expect them to fend for themselves. They'll reward you with many months of beautiful color if you just take care of them. Enjoy!

Electric Blanket Shrub/Groundcover Rose

2009-05-26T19:18:00.000-07:00

Electric Blanket Rose

Electric Blanket Rose, a shrub/groundcover type of rose, has clusters of lightly scented coral colored double flowers. The foliage is glossy dark green and highly disease resistant, making this rose relatively maintenance free. It's growth habit is low to the ground, reaching only 2'-3' in height, making it a good choice for small spaces. Uses include slopes, rock gardens, or just as a front for taller hybrid teas or other tall rose bushes or perennials. As with all roses, they prefer full sun, regular fertilization, and 1" of water a week for best flower production. Calico suggests you come in and see these beauties before they are sold out!

By Sandy Weinkam
Gardening Expert at AJ Rahn Greenhouses

2009-05-17T18:44:00.001-07:00

Delosperma - Ice Plant

Delosperma or Hardy Ice Plant is a perennial succulent.This is a great groundcover for rock gardens or for slopes. It takes heat well, and needs very little water to keep looking good. This plant is hardy for zones 5-11. Their bloom time is from late spring through summer.
The ice plant needs full sun and well drained soil, and watered when completely dry. Too frequent watering may cause the roots to rot.
Whether grown in containers or in the landscape, this is a great plant to grow.

By Gayla Parker
Gardening Expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-05-10T18:50:00.000-07:00

Crotons

The colorful croton is an attractive indoor houseplant. The more light these plants receive, the more colorful they are. During the warm summer months, using the croton as an accent plant in your landscape, whether in the ground or potted on your deck or patio, adds color and an exotic look.
To keep these beauties happy and healthy, give them a monthly shower and keep the soil evenly moist. Use an all purpose fertilizer during the spring and summer growing period.

By Doris Koop
Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-05-02T19:23:00.000-07:00

Cannas

Cannas are tropical flowering plants with large leaves and gladiolas-like flowers. They are grown as annuals in Cincinnati, however the bulbs can be dug up in the fall and stored indoors, then replanted the next spring. A must have for your summer garden, they are easy to grow and low maintenance. Check out our fine selection of varieties from tall stately Praetoria, which grows to 6', to the beautiful Chocolate Sunrise which grows to 3'. They do well planted in the ground or in large containers with other flowering or foliage plants.

By Michelle Lynn
Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-04-24T07:23:00.000-07:00

Columbine (Aquilegia)

The Columbine is a hardy old fashioned perennial wildflower native to most temperate areas of the world. The plants are one to three feet high and generally begin blooming in early to mid-May. They will often continue to bloom through June if the flowers are removed as they fade. The beautiful spurred flowers range from 1"-3", and come in hybrid colors ranging from black to white, with every color of the rainbow between. The foliage is light and delicate.

Columbines do best when they are grown in moist, rich, well drained soil in full sun to light shade. Columbines are a favorite flower for hummingbirds, but do tend to lose vitality after 3-4 years and are best replaced at that time.

Plants should be set out in the garden in spring or late summer. Plant them one to two feet apart with the crown (where the roots and tops meet) at soil level. Once established, feed them monthly with a soluble all purpose (5-10-5) fertilizer and keep them well watered during the growing season. In our zone (5-6) it is best to provide a good cover of mulched leaves in late fall to protect them from alternating freezing and thawing temperatures during the winter.

They are deer resistant, attract butterflies and hummingbirds, and are a great cut flower.

By: Sandy Weinkam

Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-04-17T06:17:00.000-07:00

"Tomaccio" Tomato

A.J. Rahn's will be the exclusive greenhouse in Cincinnati to carry the 'Tomaccio' tomato. The 'Tomaccio' is a very sweet cherry tomato that yields 13-18 pounds of fruit. The uniqueness of this variety is that the tomatoes dry naturally like raisins. It will be available at the end of April.

By: Gayla Parker

Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-04-03T07:11:00.000-07:00

Regal Geraniums/ Martha Washington

Pelargonium domesticum

The Regal, or Martha Washington geraniums, are a spectacular cool-season flowering annual. This geranium has large trumpet-shaped flowers. Coral, pink and lavender are some of the colors available. This type of geranium requires more water than regular geraniums.

By: Michelle Lynn

Gardening expert at A.J. Rahn Greenhouses

Susan's Classroom - Tomaccio Tomatoes

2009-03-31T06:32:00.000-07:00

In May we hope to offer a new grape tomato called "Tomaccio." Oh I can hear it now! "Who needs another grape tomato?" This one is different. This variety has been introduced this year after several years of study. This variety is "dryable." The tomatoes are simply placed in the sun and they dry just like raisins. It has been hybridized to be the best tasting and easiest of drying. This "Tomaccio" will only be available at A.J. Rahn Greenhouses in the tri-state area. We are still, however, in the procurement stage so please check with us on this in May!

Calico's Pick of the Week

2009-03-27T06:31:00.001-07:00

Alexander White Iberis

Iberis, commonly called candytuft, is a very hardy perennial that has been used in gardens for many years. It is an early blooming, vigorous perennial that is semi evergreen in our zone (5-6). The cultivar 'Alexander White' is a compact, very floriferous plant, which typically is 6-8" tall, spreading to 18" wide. Large profuse clusters of pure white flowers often obscure the glossy dark green foliage in mid to late spring. This perennial prefers well drained soil in full sun, and is drought tolerant. It makes an excellent edging plant, or can be used in rock gardens or cascading over a wall.

By: Sandy Weinkam

Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-03-20T06:29:00.000-07:00

Lettuce, the first of our spring vegetable crop, is now available for planting. We have six types, including Buttercrunch and Gourmet Leaf, that will give you spring color and flavor. Plant in the garden or in containers.

By: Gayla Parker

Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-03-13T06:31:00.000-07:00

Bromeliads -

These tropical beauties have a colorful flower that lasts for months. They like sun indoors; outdoors they like sun or shade in the summer.

By: Doris Koop

Gardening expert at A.J. Rahn Greenhouses

Calico's Pick of the Week

2009-03-09T11:00:00.000-07:00

"Garden Gnomes? Not on my Watch!"

The English daisy is an ideal early flowering plant to use in window boxes and containers for spring. Used with pansies and violas, its dwarf habit and double flowers in pinks, red and white will make a nice addition to your spring container. English daisies do enjoy a sunny to light shade location.

By: Michelle Lynn
Gardening expert at A.J. Rahn Greenhouses

Susan's Classroom - Pansies

2009-02-27T12:39:00.000-08:00

Pansies, without question, are one of the most exciting plants of spring. I don't believe any other plant causes the excitement that pansies do. When people first see them in the spring, smiles are everywhere. I remember one time I noticed a customer, upon getting out of her car, was literally screaming while jumping up and down in the parking lot when she saw them through the glass of the greenhouse.

Pansies love cool weather and snow does not hurt them. (Actually when they are covered in snow, do not brush off the snow.) As soon as the soil is thaw from winter they can be planted. Most years this usually is in March; Although I remember some Februaries when this was do-able.

There are some who believe pansies need to be planted in the fall for spring bloom. We believe the best spring pansies are still planted in the spring. In most cases the fall pansies take so much longer to get going than fresh spring plants. I won't say fall plantings don't work for spring, but generally spring planting is more successful. Note, there is no difference in the varieties, it's just when they are planted. Also, the term "winter" pansy is a marketing concept. All pansies are cold tolerant. Some varieties of pansies, however, have been hybridized to be more heat tolerant to last longer into the warm season.

As you take them out of the pot to plant, it's best to loosen the roots. Plant them level in the soil of your container or in the bed and water them in well. After they're planted, sometimes when springs are unusually cool, it's difficult to tell if the soil is truly wet or if it's just cold soil. Probably the soil is dry if you haven't watered too recently, so go ahead and water well. Pansies do get thirsty, so be sure to check them; however they need to be dry between watering's.

Pansies don't require a lot of fertilizer but occasionally fertilizing with Jack's All Purpose is great!

Dead-heading is not necessary but it does help them to look fresher. Sometimes if the season is unusually warm, dead-heading will prolong the bloom time. It does curb the build up of seed pods. If annuals believe they have produced enough seed they sometimes feel they don't have to bloom any longer; they've done their job! I personally dead-head my pansies twice a season.

The brand new pansy this spring is Frizzy Lemonberry. As the name suggests, it is a light yellow and plum blend with curly edges. It is very, very pretty!

Panolas are a relatively new hybrid. They are a cross between a pansy and a viola. They have a high bloom count like violas with gorgeous color spectrum like pansies. The blossoms are medium size and there are lots of them. Panolas are great because they are very showy and full of color. A.J. Rahn Greenhouses will have plenty of panolas this season.

Susan's Classroom - Cyclamen

2009-01-30T11:29:00.000-08:00

It's cyclamen time. They are absolutely beautiful. Just come in and see the color. It's a sight to behold. We had them at Christmas with all the poinsettias but now we have all of them blooming and they do make a show.

Cyclamen are easy to care for. Their main requirement is a cool location. They love a semi-sunny room with temps in the 60's or even 50's. Anything above 70 degrees and they are not "happy campers".

When watering, feel the soil. If the soil is wet or if you're not sure if it is wet, don't water. If the soil feels dry, water well.

Sometimes you might find you've missed a watering and they are flat on the pot. They look dead! Go ahead and water well. It will take maybe as many as eight hours for them to perk up but they will perk up.

Many customers tell us they have their cyclamen for a couple of years. Then there are some who struggle to keep them for one week. It's usually a temperature issue -- too warm!

Don't expect cyclamen to bloom in spring or summer. They can, but this is not their "agenda". They are normally dormant in the summer. Their bloom time is late fall to winter. They look dead in the pot spring and summer. Place the pot on a tilt outdoors in the shade, water occasionally. In late August, set the pot upright, water regularly, fertilize lightly and you should have color again in later October.