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Helictotrichon sempervirens

Blue Oat Grass (Evergreen Oat Grass)

A rock garden accent forming a stiff, spiny ball of blue-gray foliage and producing graceful, arching sprays of bluish-brown blooms.

  • »  AKA Avena sempervirens
  • »  Semi-evergreen ball of spiky blue blades
  • »  Blue seed heads (rarely produced) turn tan in colour and persist through the winter
  • »  Bloom Time: Late spring
  • »  Flower Height: 100 cm
  • »  Foliage Height: 60 cm
  • »  Grass Type: Cool Season

2gal
$41.83
  • Category:Grasses
  • Hardiness Zone:5
  • Height:40-100 cm
  • Spread:30-50 cm
  • Bloom Color: Blue
Exposure
• Full Sun
Soil Moisture
• Average to Dry Soils
Growth Rate
• Medium
Critter
• Deer Resistant
Attributes
• Evergreen
• Low Maintenance
Flowering Time
• Lt. Spr-Sum
• Summer
Habit
• Clumping
• Rounded
Foliage Color
• Blue
Landscape uses
• Foundation planting
• Rock garden
Planting instructions
• Container Plants
Additional Information about Helictotrichon sempervirens

Cool Season Grasses: These grasses do the majority of their growing in early spring and start again when temperatures start to cool in the fall. During the warmer summer months, they stop growing and some will even go dormant. Cool season grasses flower in the spring or early summer. Most cool season grasses grow best in a consistently moist soil.

Growing & Maintenance Tips for Helictotrichon sempervirens

Best grown in full sun or light shade in a well-drained soil. Remove dead foliage in the spring. Clumps should be divided in the spring every 2-3 years to maintain vigour.