Perennials for American Gardens: The definitive A-to-Z reference guide to over 3,000 species, cultivars and hybrids for gardeners across the country

An encyclopedic book, designed for the wide range of American climatic and cultural conditions. Includes 400 classes and 3000 species of cultivated varieties and hybrids. 360 full-color photos. Just published in '89, this is already a backlist bestseller