Helictotrichon sempervirens

Blue Oat Grass

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Blue Oat Grass is a cool season evergreen grass with very narrow and spiky steel-blue foliage creating a porcupine like clump.   Spikelets of one-sided panicles open to blueish-brown flowers in summer and mature to golden wheat by fall.  Prefers full sun and dry to medium well-drained soils.  Has good rust resistance.

Type: 

Orn. Grass

Height: 

2' - 3'

Spread: 

2' - 2.5'

Spacing: 

2’

USDA Hardiness Zone: 

4 - 8

Culture: 

Full Sun

Bloom Color: 

Brown

Season of Interest: 

SummerFallYear-Round

MAINTENANCE NEEDS:  Low maintenance plant.  No serious pests or diseases.  Crown rot may occur in too moist, poorly drained soils.  Rust may cause trouble in humid summers.

LANDSCAPE USES: Accents or Group PlantingsBordersNaturalized AreasWildlife GardensRock Gardens, and Containers.

COMPANION PLANTS: Barberry, WeigelaSedum

Image: Matt Lavin from Bozeman, Montana, USA, Helictotrichon sempervirens (6124333834)CC BY-SA 2.0

 

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