Blue Oat Grass

Blue Oat Grass (Helictotrichon sempervirens) Blue Oat Grass (Helictotrichon sempervirens) is a striking, evergreen ornamental grass known for its steel-blue foliage and upright, clumping habit. This cool-season perennial adds bold color, texture, and architectural interest to rock gardens, borders, and mixed landscapes. Distinctive Features This species forms dense clumps of stiff, narrow leaves that maintain their vivid blue-gray color year-round. Its upright form and sharp texture provide a striking contrast to softer garden plants, making it a favorite for adding structure and color. Growing Conditions...