Publisher's Note Perfect for anyone who has mastered basic gardening techniques and wants to explore the world of flower gardening with perennials, this friendly guide helps readers add color and style to their gardens with perennials that are low-maintenance and provide beautiful cut flowers. A handy reference, "Perennials For Dummies" shows readers how to tell the difference between perennials and annuals, why and when to plant them and what trees and shrubs fit this classification. Color photos, line drawings.