Blue grama grows on a wide array of topographic positions, and in a range of well-drained soil types, from fine to coarse textured. The Bouteloua gracilis plant height at maturity ranges from 15–30 cm (6–12 in). The roots generally extend 30–46 cm (12–18 in) from the edge of the plant, and 0.9–1.8 m (3–6 ft) deep. Maximum rooting depth is around 2 m (7 ft). Blue grama is green to greyish in appearance.