Blue Oat Grass

Helictotrichon sempervirens

Blue Oat Grass (Helictotrichon sempervirens) is a slow-growing perennial, hardy in USDA zones 4-8, that matures to about 2-3 ft × 2-2.5 ft. It does best in full sun with low water needs in well-drained and occasionally-dry soil. Expect blue and brown blooms in summer. It stands up well to black walnut, deer and drought.

USDA zones

4-8

Sun

Full sun

Water

Low

Mature size

2-3 ft × 2-2.5 ft

Growth rate

Slow

Maintenance

Low

Soil

Well-drained, Occasionally-dry

Bloom color

Blue, Brown

Bloom season

Summer

Tough against

Black walnut, Deer, Drought, Dry soil, Pollution

Native to

France, Italy