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The Plant Guide

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Blue oat grass

Helictotrichon sempervirens

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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 CharacteristicsCombines well with purple- or silver-leaved plants.

CareGrow 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.

PropagationSow seed in spring, or divide clumps in spring.


  • Genus : Helictotrichon
  • Plant Width : 1 to 3 feet
  • Plant Height : 3 to 6 feet
  • Zones : 4, 5, 6, 7, 8, 9
  • Moisture : Dry to Medium
  • Light : Full Sun
  • Plant Type : Grasses
  • Maintenance : Low
  • Characteristics : Showy Foliage
  • Plant Seasonal Interest : Summer Interest

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