Update to include new techniques and to reflect current trends -- such as the growing popularity of green roofs and crevice gardening -- the "Encyclopedia of Gardening" guides readers expertly through the latest gardening techniques, details information on garden planning and design, covers useful tools and materials, and features an extensive glossary of plants, including trees, shrubs, and perennials. Written by experts and including an expanded section on how to grow fruit and vegetables in containers, the "Encyclopedia of Gardening" is the world's finest and most authoritative source of horticultural advice.