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.
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Type: |
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Height: |
2' - 3' |
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Spread: |
2' - 2.5' |
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Spacing: |
2’ |
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USDA Hardiness Zone: |
4 - 8 |
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Culture: |
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Bloom Color: |
Brown |
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Season of Interest: |
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 Plantings, Borders, Naturalized Areas, Wildlife Gardens, Rock Gardens, and Containers.
COMPANION PLANTS: Barberry, Weigela, Sedum
IMAGES: Matt Lavin from Bozeman, Montana, USA, Helictotrichon sempervirens (6124333834), CC BY-SA 2.0, (2) Matt Lavin from Bozeman, Montana, USA, Helictotrichon sempervirens (6123791753), CC BY-SA 2.0
*As plants have ranges in appearance they may not appear as the images shown.
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