This completely revised and updated fourth edition is the most up-to-date and simple guide to hydroponic gardening - the space-age way of gardening without soil. This is an incredibly detailed book, which will suit people of all ages, from the beginner to the most accomplished hydroponic gardener. There is new information on systems, media and lighting, with new photographs illustrating every stage in setting up systems. Includes advice on growing mediums and efficient and inexpensive containers and more.
