Red Clover
Red clover is a short-lived perennial clover that is very winter-hardy and will work well interseeded into wheat or other cereals in the spring, a few months before harvest. Part of the red clover protein is a bypass protein allowing it to make an excellent livestock feed. While being both heat and shade tolerant, red clover can fix nitrogen and can produce upwards of 100 lbs/ac of nitrogen under optimal conditions.