<p>Plastic materials have transformed gardening. Plastic gnomes, plastic hose, plastic cans, plastic tubs, plastic pots and now plastic protection in the form of low cost cloches, frames, mulches, fleece, Nets, windbreaks and polytunnels. The quality of plastic sheeting available for polytunnels can now give protection for year round cultivation even in cold, northern climates - greatly extending the Growing season. For gardens too small to Accom...