American Horticultural Society Encyclopedia of Perennials

The most comprehensive illustrated A-Z guide to today's most popular garden plants produced in conjunction with the AHS, America's premier gardening authority. Full horticultural information for over 5,000 plants produced by a team of over 40 experts. Full-color photographs of suggested planting ideas show you how to combine perennials in your garden. Special "Gardeners' Notes" panels offer expert planting advice, useful tips and fascinating facts. Published in conjunction with the American Horticultural Society.