Bulbs can be bought early in the year and potted into a loamy soil, only the lower third of the bulb being in the soil. Dry off in November and water again in March. These miniatures are S. sibirica, and the best variety is ‘Spring Beauty’. Propagation is by cuttings taken in spring. Subsequent sowings will ensure a sequence of blooming. Propagated by cuttings and division. With one or two pinchings, a well-balanced plant, covered with single highly coloured flowers will bloom for months on end. They are cool-house plants and after summer should be kept on the dry side and then pruned hard in February. Propagation by seed or offsets. Pot on in spring and early summer to 5- or 6-inch pots. Our Botanical team are working hard to increase the number of plants with detailed information. Two special tips: do not allow the roots to dry out once they are growing fast and avoid hot houses until the stalks are plainly growing quickly. There are tall or stellate forms, dwarf, large-flowered, small-flowered and semi-dwarf types, and a wide colour range. Croton; … Pot up in October and for preference grow quite cool. For the greenhouse plants list, I have chosen a range of plants which the keen amateur might well consider as possible subjects for the greenhouse. Seed should be sown in April and the seedlings potted on as soon as they are ready, first into 3-inch pots and then, long before they become starved, into 5- or 6-inch pots. Acacia (Mimosa) Shrubby, hard-wood plants, flowering in spring. Propagation is by cuttings. Brian D. Sparks is senior editor of Greenhouse Grower and GreenhouseGrower.com. Large greenhouses are important in agriculture and horticulture and for botanical science, while smaller structures are commonly used by hobbyists, collectors, and home gardeners. An ordinary soil mixture will suit. In summer the plants are best outdoors, where wind and bees do much to fertilize the flowers. It has yellow, pipe-shaped flowers, from which it gets its name. Greenhouse gases are a hot topic (pun intended) when it comes to global warming. They should be given almost pure loam, with only enough leaf-mould or peat to keep the soil from sticking. Raise from seed in 55-60°. Much neglected, these easily grown bulbs require exactly the same treatment as freesias, except that the number of bulbs in a 5-inch pot should not exceed 6. Best species E. creticum and E. plantagineum. The auricula is also a primula and makes a grand pot plant. Browse through 15335 potential providers in the greenhouse plants industry on Europages, a worldwide B2B sourcing platform. 16. Subscribe. From seed or cuttings. The best species is C. scandens, with large bell-shaped flowers of mauvy-blue, purple or white. Pot in September and grow as suggested for freesias. Avoid growing hot-house and cool-house plants together, or those which depend on high humidity with those which require a dry atmosphere. Most of them appreciate peat and loam in equal quantities, firm potting, ample feeding and watering in summer and much overhead spraying. Temperature 60° in growing season. Two species, F. californica and F. mexicana, are grown; they are almost alike. Climbing plants of great beauty, the best being the easily grown ‘Heavenly Blue’. Use a very rich, open mixture of 3 parts of loam, 1 part of peat, ½ part of dry cow dung and 1/2 part of very coarse sand. After flowering, they should be plunged outside, kept sprayed and watered, so that next year’s crop of flowers is ensured. The fibrous sorts are kept almost dry in winter, but not quite. The roots are rested from April to August, being placed in a trench outdoors for that time. Temperature 45-50°. Of this great and diverse family, there is a vast number of species, which can be adapted to pot cultivation and, in fact, such hardy kinds as primrose, polyanthus, auricula, P. japonica, P. denticulala and dozens of others are often grown in pots for greenhouse decoration. Grapes are one you may not have considered raising inside your greenhouse. Six-inch and 8-inch pots are necessary. Temperature 45-50°. Sow hardy plants such as Brussels sprouts, cabbage, celeriac, early leeks, lettuce, onions and peas for planting out when the warmer weather arrives. Sow in June and grow cool until flowers begin to open, when a little more warmth may be given. Greenhouse gardening allows the grower to control this delicate balance, regardless of what Mother Nature serves up. This is a bulbous plant from South Africa, well suited to either the warm or cool greenhouses. Pot from October to the end of November, put the pots under ashes, so that they have a covering of 3 or 4 inches, leave them there for 5 weeks, then take out, place in frames and shade for a week. In early March water normally, remove an inch or so of top soil and replace with a good loam, to which has been added some bonemeal and fertilizer. Flowers variously shaped but all rather beautiful. For my purpose here I give a list of species which do really require a greenhouse to grow in. The many varieties of H. macrophylla all make fair greenhouse plants, easy to grow if treated correctly. In this way, they contribute to the greenhouse effect, which keeps the … Tubers can be used year after year, but young material is best. The emphasis will of course be upon the Decoratives, Large-flowered, Singles and perhaps the Cascade and Charm types. Propagation is by division, or from seed. Propagation is by seed. Stay tuned for the first newsletter in the morning, straight to your inbox. This old favourite should be in every greenhouse if only for its sweet scent. Easily grown bulbs, which do better in a cold house than in a warm one. Here again is another plant which I will not attempt to deal with. The taller varieties, too, are excellent. A number of lilies may be grown in pots, using the 6- or 8-inch size. As time goes on, one will wish to adventure into the lesser-known families of plants and, helped by the knowledge gained when passing the novice and elementary stages, there are indeed no limits for the keen grower, so long as he has the suitable heating and structure— coupled with his enthusiasm. Feed well when growing, and repot every two years in very rich loamy and peaty soil. It is then that he may require more detailed help in the cultivation of certain genera, but as there are many works on greenhouse plants, these should provide all the instruction necessary and at much greater length than is possible in a work of this size. Dry off after blooming until potting time, which can be September or October. Christmas cactus; Schlumbergera bridgesii Coleus; Solenostemon spp. Increase by seed or cuttings. Sow in autumn and in very early spring, and grow in a temperature of not less than 40° in winter. Cuttings root easily in summer. This is a long-stemmed, blue-flowering plant, with strap-like leaves and many lily-like flowers radiating from the top of the stem. The one variety to grow is Prince of Orange. Bulbs must be potted in spring, and put into any good compost with their noses just sticking out of the soil. Most of the species like a loamy soil, but it must be well drained and, given that, they are easy to grow. May 2017 by admin Best Air Purifying Plants; 7 Low Maintenance Indoor Plants (7 Plants for Beginners) How Plants Help to Clean the Air; Plant Gifts for Everyone on Your Holiday List; Decor . C. nana is excellent for small houses. Any ordinary potting compost will suit it. When growth begins, they must be placed into a night temperature of 55°, where they will develop and throw up their 18-inch stems of pure creamy-white waxy flowers. Read on to discover the most common supplies for a greenhouse. FOR the list which follows I have chosen a range of plants which the keen amateur might well consider as possible subjects for the greenhouse. Also, the warmer the temperature, the … When your shiny new greenhouse finally arrives, you’re going to need greenhouse gardening supplies. Use a well-drained but rich, loamy soil. Most others will come under the group called hybrids. Sow seed in October, grow on in a cool house and pot on before February for early flowering. There is one species of phlox which makes an ideal greenhouse plant. For most people it will be the 5- or 6-inch pot that will be most suitable. Plant the bulbs of stem-rooting sorts so that a third of the top part of the pot is left for top-dressing when the stems have formed. It is nearly hardy, and is thus a good subject for cold houses; but the winter temperature should not go below freezing-point. Chenille Plants. These are small-growing bulbous or cormous plants, ideal for pot culture. After flowering, stand or plunge outdoors, but water well till September and from then on the watering must be decreased until the plants are dry. Loamy soil with some addition of peat and coarse sand should be used. Best grown from seed sown in June, the plants being moved on to the 6-inch size by October. Winter temperature 40-45°. These plants are also for the warm house, and being of a trailing nature are best grown in baskets suspended from the roof. Bringing Outdoor Plants Indoors: 5 Tips for an Easy Transition; Articles . They are inclined to be drooping or pendent. Propagate by placing ripe shoots in water till rooted, keeping in a warm place. To turn pink varieties blue, use alum at 1 oz. It should be studied and grown by every gardener, for by judicious choice and normal cultivation, it might well be the very foundation of every glasshouse display. The best species is C. miniata. Cool-house treatment. Probably the most useful bulbous plant for the cool or cold house. It is about a foot or 18 inches high, is sown in August, wintered in a frost-proof house and allowed to flower at will. All are propagated by cuttings, which is preferable to sowing seed. The hybrids are ideal for growing in pots to supply an April display. Get every new post delivered to your Inbox. Now called Limonium, but still better known under its old name. Tubers are rested in winter and started into growth by placing these in boxes of leafy compost, then being potted on to 5- or 6-inch pots. At Gulley Greenhouse we specialize in custom growing plugs and liners of perennials, herbs, ornamental grasses, and vegetative annuals. It is essential that a winter night temperature of 48-50° be maintained to achieve good results. These are usually purchased as well-developed plants all set with buds the previous autumn. By Jennifer Poindexter. An open, well-drained compost is essential. An open loamy soil with leaf or peat added is essential, and it will respond more freely to a warm temperature than a cool one. This is one of the most strongly scented of all flowers, but is for the warm house only. Sow either in July or August for spring flowering and in January for later flowers. For cool houses the best species are E. cornea, E. darleyensis and E. mediterranea, choosing from a catalogue those forms or varieties which have the brightest colours. Propagation is by division. Give some humidity all the time, and once the red or gold plumes develop give more air and almost full light. Variously coloured tubular flowers in many colours K. flammea 45-48° in winter from maintenance... 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