Common red is a single cut red clover, normally only last one season. Red clover is the most popular and widely grown true clover. It is planted both alone and within existing grass stands. Red clovers are divided into three types that are used in the US. Early flowering (medium), late flowering, and intermediate forms. Red clovers grow best in the summer when temperatures are cool and moisture is sufficient throughout growing period. Northeastern states are best for this crop. Growing in Southeast is best used as a winter annual. In the Northeastern states it usually requires irrigation. Spring seeding works best.