Companion Planting Companion Planting: How the Right Plants Can Help Your Garden Thrive A healthy garden is more than a collection of individual plants. It is a small ecosystem where flowers, herbs, vegetables, insects, soil, and sunlight all work together. Companion planting is the practice of growing certain plants near one another because they may provide mutual benefits. Some companion plants attract pollinators, while others help discourage pests, provide shade, cover ba