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Zones 3-8
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Zones 3-8

Blue Oat Grass

Helictotrichon sempervirens 'Saphirsprudel' (= ‘Sapphire’)

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Blue Oat Grass

Helictotrichon sempervirens 'Saphirsprudel' (= ‘Sapphire’)

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Blue Oat Grass is a striking ornamental grass that forms a dense clump of thin leaves, rising about 18 inches into the air, like the fine spray of a fountain. The foliage is a bold silver-blue color, and in warmer zones it is evergreen, looking good all through winter. In summer stems to 3 feet tall rise up, carrying clusters of nodding grass flowers that sway and rustle in the breeze. A superb grass for sunny areas, rocky slopes, edging beds, rock gardens, coastal gardens and in planters.

  • A blue fountain of slender silver-blue leaves
  • Topped with tall heads of nodding grass flowers in summer
  • Very cold-resistant even in zone 3
  • Evergreen in warmer zones
  • Grows well in coastal areas

Full sun is best for the Blue Oat Grass, which will take an hour or two of shade as well. It needs well-drained soil, and will grow in almost all types of soil, from clay to sandy gravels. It isn’t bothered by pests, diseases or deer and it tolerates drought and salt-spray well. Cut down to a inch or two tall in fall or late winter, if needed to encourage fresh, new foliage.

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