CAPILLARY WATERING AND IRRIGATED BENCHES FOR POT PLANTS

This method of watering makes use of the fact that water rises by capillary action in a suitable potting compost, so long as the base of the pot is in contact with a moist medium. Plastic pots which have a ring of drainage holes lend themselves well to this method, and some pot plant growersContinue Reading

NUTRITION FOR HOUSE PLANTS UNDER GLASS

A large proportion of plants are grown and sold in containers. The nutrition of these plants is probably more vital than of those growing in the open ground. The reasons for this are as follows: a) The roots cannot explore a large area of soil/compost. b) It may be desirable to obtain maximum growth andContinue Reading

GROWING HOUSE PLANTS UNDER GLASS

Although flowering and non-flowering plants are included in this category, the bulk are evergreen plants, mostly non-flowering ie foliage plants. The large scale production is in the hands of a few specialist nurserymen and there is a steady demand for these plants throughout the year, with a seasonable rise in sales for the pre-rChristmas period.Continue Reading

THE CULTIVATION OF CINERARIAS AS POT PLANTS

Types C. stellata can be used where tall plants are r<: quired. The most popular types are strains of C. multiflora nana, which are dwarf and compact. Seed sowing Sow in April for November and December flowering, or in June for a January and February display, and July for late spring flowering. Sow thinly inContinue Reading

IVY LEAF GERANIUMS Pelargonium peltatunri

These plants are sold mainly for window box decoration in summer, and due to their habit are also popular for hanging baskets. There is only a small demand as flowering pot plants. Being half hardy, they are not used out of doors until June. Propagation Soft tip cuttings are best taken from stock plants setContinue Reading

AN OUTLINE OF CUCUMBER CULTIVATION

Cucumbers were mainly grown in low, narrow houses up to 4.5m in width, but many commercial growers now use VENLO multispans or the 9m wide aluminium vinery type houses. Varieties Several F1 hybrids are now grown eg Green Spot (this being similar to BDR), Top Score and Feminex, which has 100% female flowers. BDR isContinue Reading

THE CULTIVATION OF MELONS UNDER GLASS

These are traditionally grown in low, rather narrow houses where it is possible to maintain a temperature of about 27°C. Note for horticultural students Historically melons have not cropped up in the examinations questions over many years. The subject is included in this text partly because countless students have had to study it before; andContinue Reading

GROWING GREAT GLASSHOUSE TOMATOES

Varieties F1 Varieties for quality and yield include: Adonia Estrella Eurocross A These are all disease-resistant. PREPARATION FOR PLANTING Planting and routine work Tomatoes are grown commercially in many types of house. Generally speaking however, large, airy, span-roofed houses, running north and south are most usual. There are two chief types: i) the vinery whichContinue Reading

SPECIALISATION IN GREENHOUSE CULTIVATION

The mixed house is only successful on a domestic or commercial scale when growing house plants. For single crop plants such as tomatoes, carnations and cucumbers it is very bad practice and should never be considered as the growing conditions are so specialised and are totally different for each crop. Whatever crop is being grown,Continue Reading

Soils – An introductory Guide

Ask a gardener about his soil and there will probably be a long moan, too heavy, too light, too chalky, too wet, too dry, too acid or too alkaline. Ask a non-gardener about soil. There will probably be a blank stare and but that’s just dirt, isn’t it? And yet each generation is the custodianContinue Reading

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