Nitrogen production from these cover crops is the key benefit of growing them. Nitrogen accumulation can range from 40-200 lbs. per acre. These plants fix nitrogen from the atmosphere to provide for their own needs and also provide nitrogen excess into the soil.
The Knuckle Purple Hull cowpea is a bush type producing heavy yields of purple pods that tend to stay off the ground and cluster making for easy picking.
The seeds are a typical blackeye type of Southern peas with cream-colored seed coats and black pigments around the eyes.
The Lady cowpea is the smallest and most tender Southern cowpea on the market and is a variety that is popular and hard to find.
The Big Boy Purplehull is a high yielding, popular Southern cowpea that is great for home gardens as it is very prolific.
The California Blackeye #5 is a high yielding, vigorous and easy to grow cowpea plant that can be used green shell peas or dry like winter beans.
Does well in most climates. Pods average 6-7 ” long, and are silver colored, occasionally streaked with rose. Easy to grow and shell.