Many people mistakenly think that ecological gardening—which involves growing a wide range of edible and other useful plants—can take place only on a large, multiacre scale. As Hemenway demonstrates, it’s fun and easy to create a “backyard ecosystem” by assembling communities of plants that can work cooperatively and perform a variety of functions, including:

• Building and maintaining soil fertility and structure
• Catching and conserving water in the landscape
• Providing habitat for beneficial insects, birds, and animals