Cedar Greenhouses are the choice for the traditionalist and the expert gardener. They are commonly made from Canadian Western Red Cedar, which is renowned for it's exceptional long life outdoors as a result of it's effective rot resistance. Cedar greenhouses are the traditional style of greenhouse before the aluminium greenhouses and plastic greenhouses became more popular towards the end of the last century.
A Cedar greenhouse will obviously blend in naturally with your garden and will become an integral feature rather than something of an eyesore which you wish to hide away. Timber is also the choice of the expert gardener and it is generally agreed that it is the best material for a greenhouse. One of the main reasons is that the red cedar greenhouses are much better at maintaining a constant temperature than aluminium ones, which obviously leads to a healthier and more natural environment. An experienced gardener will know the benefit of having things to hand and a wooden frame will allow the gardener to easily fix hooks and shelves exactly where he wants them, so those all important greenhouse accessories are to hand. The wooden frame also makes it easier to fix an extra layer of insulation of plastic bubble sheeting, such severe weather conditions prevail.
The best time to add a protective coat to a timber frame is before winter sets in. Choose a good day in the late autumn and give the frame any attention it needs. Look for any wear and tear and treat it immediately. Most good timber frames come with a ten year gaurantee, but don't wait for 10 years before checking.
Cedar greenhouses are slightly more expensive than aluminium and plastic ones, but do offer more to the experienced gardener. Aluminium and plastic greenhouses are a better choice for the beginner before upgrading to a timber greenhouse.