Division in the early spring is often required to restore vigor. Regular fertilization may benefit this group. A large group of grasses with considerable variability in height, blade width, etc. Select cultivars carefully to insure adequate hardiness and adaptation to your site. Cultivars with red fall color and blue foliaged upright cultivars are popular.
Most members are warm season, clump forming grasses.
Some may become weedy, especially south of Rhode Island. Both annual and perennial cultivars are valuable in the landscape. Flowers are showy and are foxtail-like in their appearance.