&i;Hortica&o; presents a comprehensive selection of choice ornamentals, as well as useful plants and edible fruit, photographed in gardens, botanical collections and arboreta, or in their natural habitat around the world. All plants have been assigned their zone of cold-hardiness, or range of optimum climatic tolerance, as a guide to suitable placement in garden planting. &i;Hortica&o; differs from its companion volumes &i;Tropica&o; and &i;Exotica&o; by showing more of the garden flora of temperate and colder climates, whilst also including the best of warm-climate subjects, in the interest of comprehensive coverage of plants grown worldwide. The pictorial section is grouped into 16 categories, and there is a common names index, plus details of botanical terms, pronunciation of Latin names, a bibliography, and climate maps showing hardiness zones, world vegetation maps and information on plant geography. This is a very useful reference work for gardeners, landscape designers, and botanists, etc.