Rather than a pea, Cowpeas are considered to be a bean. Cowpeas are used as snap beans when immature, as fresh shelled beans and later as dry beans. They are extremely versatile and particularly well suited to dry hot climates. Grow these seeds in warm/hot climates; they do not do well in cool weather. The young immature beans may be eaten as you would snap beans. Asparagus Yard Long Beans are grown as a snap green bean while Black-eyed Peas are most often grown for the delicious beans that develop in the pods. You may let the mature beans dry right on the vine.