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Greenhouse Gardening – Range Of Greenhouses

By admin On August 29, 2008 Under Greenhouse Gardening

There are greenhouses to suit gardens of our sizes and shapes. Mini-greenhouses are ideal in small gardens and on patios while on a grander scale, freestanding types enable a wider range of plants to be grown. Sunrooms and conservatories also introduce a new gardening dimension and are especially suitable for growing large, long-term foliage plants, such as palms.

Shapes And Sizes

Whatever the size of greenhouse initially estimate to suit your needs, double it! Invariably, after gardening in a greenhouse for several months, you will wish to extend the range of plants.

The smaller the greenhouse the more rapid and extreme the temperature changes. Those at midday and during the afternoon may be excessive, while at night they fall suddenly. A greenhouse about 3.6m/12ft long and 2.4m/8ft wide is about the optimum size, having a volume of air that avoids sudden temperature changes. There also must be provision for adequate ventilation.

The range of greenhouses now available includes:

Full-span greenhouses, with a ridge and two eaves, are traditional and widely available. Wooden and earlier types often have bricks or wooden panels up to about 75cm/2½ft high. Modern, aluminium-framed types, however, are completely glazed. Greenhouses up to 2.4m/8ft wide have central paths about 60cm/2ft wide and 90cm/3ft wide spaces on either side for staging or growing plants at ground level.

Lean-to types vary in length and width to suit the wall or house they are constructed against. Most have brick or wooden walls up to 75cm/2½ft high, with framework in wood or aluminium. Traditional types are 1.8m/6ft to 2.1m/7ft wide, but some – a compromise between mini-greenhouses and normal lean-to types – are 1.2m/4ft wide, and only large enough for a path and a few shelves.

Some lean-to greenhouses are large enough to form sunrooms and conservatories. Modern forms of these have assumed ornate Victorian styles, with double-glazing and a plastic framework. These create comfortable living areas for plants and people, but ensure they provide plenty of ventilation, in both sides and roof.

Too often, conservatory designers appear more concerned with heat conversation than releasing excessively hot air in summer, which soon kills plants and makes living in them unbearable.

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