All the key techniques for gardening organically, including the care and cultivation of plants, compost and fertilizers, and pest and disease control. Includes more than 350 easy to follow step-by-step artworks that guide you through a wide range of essential gardening projects. The vast experience and authority of the Royal Horticultural Society has produced and invaluable guide with clear, practical information for all gardeners. This classic series has sold over 2.000,000 copies.