DescriptionRC Big Rock Switchgrass is a new late season variety of upland switchgrass developed from Cave-in-Rock. This is a native perennial warm season grass that is extremely productive, reaching 8 feet tall on the best soils of the Midwest. It also establishes faster than most native grasses because it has larger seeds with reduced dormancy and more seedling vigor. RC Big Rock can grow 2 ft tall in 2 months in the seeding year. This is a multi-purpose variety to be used for wildlife habitat, soil conservation, and forage throughout the greater Midwest where annual rainfall averages 30-50”.