A frenulum (or frenum) is a small fold of tissue that prevents an organ in the body from moving too far.
Cover crops usually are grown to prevent soil loss from wind and water erosion. Use fast-growing cover crops, such as winter wheat or annual rye, on fall-spaded gardens. A second, and probably more important reason home gardeners should use cover crops is to improve soil structure and increase organic matter.
Planting/Propagation. Plant winter cover crops in vacant space in the vegetable garden. Plant winter kale, Brussels sprouts, turnips, parsnips, parsley, and Chinese cabbage. Western Oregon: Mid-summer planting of peas; use enation-virus-resistant varieties, plant fall crops of cabbage, cauliflower, and broccoli. Oregon Coast: Plant spinach.