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Cover crops planted in late summer are an inexpensive way to build better soil for gardening.
Cover crops often are called green manure crops. They are grains, grasses, or legumes that will grow during fall and winter and that you can plow, spade, or till under in the spring. During their growth, cover crops help reduce soil compaction and prevent erosion. Their roots penetrate and help loosen heavy-textured soils, allowing better air and water penetration. Inoculated legume cover crops add nitrogen to the soil.