Red clover seed is an important forage legume grown widely in the temperate regions throughout the U.S. extending from the Northeast through the Midwest to eastern North and South Dakota, Nebraska, and Kansas and into the upper South. Red clover is becoming increasingly important in the Deep South where it is used as a winter annual. It is also grown in many areas in the Pacific Northwest and other regions of the U.S. Red clover is adapted to a wide range of climatic conditions, soil types, fertility levels, use patterns and management. It is easy to establish, red clover seeds establish vigorously and is a very good clover to fixate nitrogen out of the atmosphere and in to the soil. Red clover is relatively easy to remain free of disease and pests. For this reason, red clover has many uses and is often used as part of a crop rotation program. Although red clover seed is tolerant of a wide range of soil and climatic conditions, it prefers rather mild conditions rather than hot climates and prefers locations where rainfall or irrigation are consistent throughout the year. Red clover is most often grown in association with cool season grasses but can be grown alone or with certain warm season perennial grasses. It can be used for pasture, hay, or silage, and is an excellent soil improvement crop. When grown where it is well-adapted, the yield of red clover seed is usually higher than that of any other clover. In addition, it has a longer growing season than any other clover grown in the United States.