Presents the basic principles of bio-intensive gardening in concise, easy-to-understand terms accessible even to a gardening beginner. By implementing bio-intensive techniques and working in harmony with natural garden cycles, gardeners will soon produce yields up to four times greater than those obtainable with conventional methods, in a fraction of the growing space. Sustainable gardening is an environmental solution for the new millennium and this work helps gardners contribute to that solution - in their own back garden.