This clump-forming ornamental grass grows to a height of about three feet with full sun to partial shade and moderate moisture conditions. Starting in July, fountains of airy, bristly, bottlebrush-type flowers appear, in shades of white, pink or reddish-brown. Native to eastern Asia and Australia, the species is marginally hardy in Illinois, but can become invasive in warmer areas. Fountain grass turns yellow in the fall, but when the seed heads turn brown, it's best to clip them off to prevent re-seeding.