Colorful cover crops such as bachelor’s buttons and crimson clover will not only improve soil, they'll beautify your garden beds.
ILLUSTRATION: ELAYNE SEARS
Oats are a good cover crop option. Mature oat plants will grow 2 to 3 feet tall, but their roots can extend up to 6 feet into the soil.
As cover crop roots die off, they leave behind channels in the soil for the roots of subsequent crops to follow, making it easier for new roots to reach deep.