Blue oat grass

Helictotrichon sempervirens

Photo/Illustration: 
Michelle Gervais
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Blue oat grass (Helictotrichon sempervirens)
hel-ik-toe-TRY-kon sem-per-VEER-enz
Synonyms:  Avena candida
Genus:  Helictotrichon
Dramatic powder blue foliage and spiky architecture are hallmarks of this plant. The leaves resemble rigid, tapering pieces of steel blue linguine collected in a porcupine-like dome.
Noteworthy Characteristics:  Combines well with purple- or silver-leaved plants.
Care:  Grow in well-drained, poor to moderately fertile, alkaline soil. Tolerates gravelly, infertile soils. Remove dead leaves and old flowers in spring. Tolerates drought once established.
Propagation:  Sow seed in spring, or divide clumps in spring.
Problems:  Rust.

Overview

Height
3 ft. to 6 ft.
Spread
1 ft. to 3 ft.
Growth Habit
Clumps
Light
Full Sun Only
Moisture
Dry to Medium
Maintenance
Low
Characteristics
Showy Foliage
Uses
Beds and Borders
Style
Rock Garden
Seasonal Interest
Summer Interest
Type
Grasses

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