This is the definitive practical guide to choosing, planting and combining herbaceous perennials - an essential tool for gardeners of all levels, from the experts at the RHS. From Acaena to Zizia, an A-Z guide to over 5,000 perennials, this book: includes the vast numbers of new perennials made available in the last 10 years; tells you how to choose the right ones for your garden with cultivation, propagation and hardiness information to help you grow them successfully; and gives inspirational ideas for planting schemes and expert tips on how to get the best from your plants and your garden. You can make a perennially beautiful garden with this essential guide.