Blonde Ambition Blue Grama Grass is widely considered one of the coolest ornamental grasses for the Oklahoma landscape. It is a highly ornamental cultivar of a native prairie grass, making it naturally tough as nails while offering a unique, modern look. Finely-textured, blue-green blades form a tidy mound. Unique horizontal seed heads form that look like tiny blonde flags The seed heads turn a golden-blonde and remain standing all winter.