What is the average rainfall needed for broomsedge bluestem to grow?

Broomsedge bluestem, a perennial grass commonly found in the southeastern United States, typically thrives in areas where the average annual rainfall ranges from about 25 to 35 inches. This grass species adapts well to a variety of soils, particularly in dry, sandy, or poor soils, which is why it can often be seen in less fertile areas.

While the options reflect various rainfall levels, the choice of 25 inches is significant as it represents a median threshold that allows broomsedge bluestem to achieve optimal growth. Rainfall around this amount supports the grass's moisture needs while also being conducive to survival during drier periods. Values lower than this, such as the lower options, may not provide sufficient moisture for consistent growth, while much higher levels, like the highest option, could lead to waterlogging conditions that are detrimental to its establishment and health.

Recognizing these environmental factors is crucial for understanding the growth and maintenance of broomsedge bluestem in its natural habitat.