Growing Tulip Bulbs in the Greenhouse

Apart from their value for growing in bowls in the living room, tulips can be used for increasing the colour display in the greenhouse early in the year. September is a good month to plant. Crock the pots well, then add some leafmould or peat before putting in John Innes Potting Compost No. 2. Work the compost around the bulbs without making it too firm, leaving the very tips of the bulbs just exposed.

Place the pots out of doors on a hard base covering them with at least 2 in. of leafmould, sandy soil or weathered ashes. Leave them for about eight weeks by which time they will have made a good root system and an inch or so of top growth. Bring them into a cool greenhouse and dull light for a week and then stand them in full light in a temperature of 15 to 21 °C., watering freely. Once the flower buds expand the temperature can be reduced.

Single Early varieties growing 12 to 15 in. high include Brilliant Star, scarlet; Couleur Cardinal, purplish-crimson; General de Wet, orange; and Prince of Austria, orange-red. Good Double Early varieties are Electra, cherry red; Orange Nassau, orange-scarlet; Peach Blossom, rosy pink; and Vuurbaak, scarlet. A few of the Mendels and Darwins are also successful in the greenhouse. Most interesting of all, however, are the tulip species with their exotic shapes and colourings. These include Tulipa batalinii, rich yellow; Tulipa clusiana, creamy white and red; Tulipa fosteriana Red Emperior and Tulipa greigii, of which there are many named hybrids, most of which are beautifully marked red, yellow and bronze, many with mottled foliage. Tulipa kaufmanniana, the Water Lily tulip, grows 5 to 7 in. high with creamy-white flowers tinted carmine. It has many choice named hybrids varying in height from 4 to 9 in. high.


08. July 2011 by admin
Categories: Bulbs, Greenhouse Gardening, Tulipa | Tags: , | Comments Off on Growing Tulip Bulbs in the Greenhouse


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