Bouteloua gracilis 'Blonde Ambition' (Blue Grama Grass) Plant Select Winner 2011 Leaves to 12" high, flower stems to 30". Best in full sun, can take light shade. Somewhat well-drained soil needed. Moderate to little watering. Hardy to 0. Space 10 to 12" for mixed plantings. Effective in drifts and mixed plantings. Profusion of big, showy chartreuse flowers, held horizontally above the leaves. Flowers mature to long lasting blonde seed heads.