Perennial Grass: Evergreen. Tolerates drought, heat, deer and rabbit. A finely textured ornamental grass with silvery blue foliage that forms rounded tufts that send up airy sprays of small beige flower spikes in summer. Provides nice color and interest to the garden. Rock garden, low border, edging, and container plant. Height: 8-12 inches. Width: 8-12 inches. Exposure: sun. Water: moderate/dry. USDA Z4.