A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far.
Others, such as buckwheat, are very frost-tender. The cover crops listed here are widely adapted and can be grown in most areas of the United States, either as a summer or winter cover crop, depending on where you live. Rye This crop comes in two different types: annual rye and cereal rye. Both have their advantages.
If you live in an area prone to late spring and early fall frosts, try a few of these hardy annuals to keep your gardens bright: 1  Pansy. 2  Poppy. 3  Sweet pea. 4  Snapdragon. 5  Bachelors button. 6  Black-eyed Susan.