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Home / Perennials / Ornamental Grass / Sapphire Blue Oat Grass

Sapphire Blue Oat Grass

SKU: AM015013
per Plant - 3" Pot
No longer available this season.
‘Sapphire’ Blue Oat Grass provides stunning structure and dramatic color to the garden. Long, steel-blue blades flow fountain-like in tidy clumps. Airy oat-like plumes rise above the foliage. Plant as an accent or en masse for impact. Evergreen color provides year-long interest. Improved rust-resistance keeps foliage looking clean. Low maintenance. (Helictotrichon sempervirens)
key features
Botanical Name
Helictotrichon sempervirens Sapphire
Deer Resistant, Groundcover, Easy To Grow, Winter Interest
Growing Zones
Zone 4, Zone 5, Zone 6, Zone 7, Zone 8
Light Requirements
Full Sun
Soil Moisture
Dry, Average
Mature Height
24-36" tall
Mature Spread
18-24" wide
Bloom Time
Foliage plant all season


24-36” tall x 18-24” wide. ‘Sapphire’ Blue Oat Grass is a standout cool-season ornamental grass. Plants perform best in full sun, but tolerate light shade. Bluest color develops in dry soils. Plants are adaptable to a variety of soil types as long as they are well drained. Plant as a specimen in rock gardens or as an accent in mixed beds and borders to add color and texture. Large masses can be used as a tall groundcover. ‘Sapphire’ Blue Oat Grass is deer resistant and salt tolerant. A good choice for waterwise, firewise, and coastal landscapes. Plants are sensitive to heat and humidity, though ‘Sapphire’ performs better than the most varieties. An easy care selection, blue oat grass can be cut back hard in spring as needed. Combines well with other grasses.