Go Back Blue Oat Grass

Helictotrichon sempervirens
Deer Resistant IconRock Garden Icon

Plant Type: Grasses

Clump forming, dense tuft of upright silver-blue foliage. Delicate inflorescence in late spring on 2′ slender, arching, stems. Cool season grass, reduced flowering when hot and humid; good container plant. Combine with other grasses or mix with shrubs and perennials.

Blue Oat grass looks like a miniature water fountain, with its densely packed leaves gently spraying upward and arching back downward at the tips. This species displays spiky, blue-gray foliage that will draw your attention all season long.

Blue Oat Grass adds a wonderful coarse element to rock gardens, coastal gardens, or dry hillsides.

Currently not available for online purchase.

Growing & Maintenance Tips:

Prefers fertile, well-drained soil; keep moist.

Flower Color

Small, tan seed heads appear on tall stems held well above the foliage

Foliage Color

Silver-blue shades

Plant Spread


Good Companions

Plant Height


Scape Height


Hardness Zone


Soil Moisture

Average water needs

Characteristics & Attributes


Compact, Container, Combination Plant, Drought tolerant

Bloom Time

Early Summer

Critter Resistance

Deer resistant


Full sun

Growth Rate


Seasonal Interests

Summer and fall