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Blue Oat Grass

Botanical Name
Helictotrichon sempervirens
Hardiness
Zones 4 to 9
Height
2 to 3 feet
Width
2 to 3 feet
Flowers
Early summer: pale blue
Light
Full sun
Soil
Moist, well-drained
Planting & Care
  • Cut back in late winter before new growth begins or let new growth mask the old
  • Over-watering and over-fertilizing can lead to root rot
Problems
Rust in humid weather
Varieties
  • Saphirsprudel - German introduction, rust resistant
  • Sapphire - finer, bluer foliage than species

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