Blue Fescue, also known as blue mountain grass, is a dome-shaped flowering ornamental grass that is known for its blue-gray foliage. Finely textured in individual clumps, Blue Fescue is a drought tolerant shrub, though it prefers regularly watering, that blooms in late-spring and early-summer with pale yellow flowers. Because they are often understated, Blue Fescue plantings are easy to care for and pair well with larger and more dramatic plants.