Helictotrichon sempervirens Sapphire

Blue Oat Grass

$15.95 ea. (3+ discount) $15.50 ea.

Fall 2022

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Plant Code: HESI

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Densely packed steel blue blades offer fountain-like structural interest and color to the border. In summer, flowering stems rise above the grassy foliage. As the seed of Helictotrichon Sapphire ripens, the flower spikelets age to brown. Perfect for coastal gardens and hillsides.


Type: Perennials, Grasses
Height: Medium 18-20" (3' in flower)
Spacing: Plant 2' apart
Bloom Time: Early Summer to Late Summer
Sun-Shade: Full Sun to Mostly Sunny
Zones: 3-8   Find Your Zone
Soil Condition: Normal
Flower: Not Applicable
Pot Size: 3.5" square x 4" deep

Features to Note

  • For a Slope or Bank
  • Deer Resistant
  • Evergreen
  • OK in Containers
  • Seaside/Salt Tolerant
  • Winter Interest

Helictotrichon General Information

Helictotrichon does best in full sun but will tolerate light shade. Best blue color is achieved in drier soils. Not particular as to type of soil as long as it is well drained. Evergreen in warmer climates. Ornamental Grasses are restricted from Idaho and Oregon. Idaho has restricted all potted plant material from being shipped into Idaho at this time.

Helictotrichon Plant Care

Very low maintenance. If needed cut back to 3-4" in spring before new growth appears. Can rejuvenate at any time by removing older foliage.