Indian grass was adopted as Oklahoma's state grass on January 24, 1972. . Indian grass is an important member of the tall grass prairies of the Midwest and eastern Great Plains. It is nutritious and readily eaten by all livestock. The official Sooner grass is a very hardy perennial. Its roots may lie dormant for three to five years, then begin growing when conditions are right.
Growth begins in spring and continues through the summer.
Bearing golden plume-like seedheads, Indian grass is one of Oklahoma's most beautiful native grasses. It normally grows four to five feet high, but may stretch as high as eight feet. As Oklahomans can tell you, a sea of grass is just as beautiful as a forest of trees.