This document provides information on companion planting and polyculture gardening techniques. It discusses the traditional Native American "Three Sisters" companion planting of corn, beans, and squash. It explains how these three plants benefit each other. The document then discusses other benefits of companion planting such as attracting beneficial insects, decreasing disease and pests, and increasing yields. It describes polyculture gardening, which involves planting many different crops together to increase biodiversity. Examples of successful companion planting and polyculture projects in Africa and South America are also discussed.