Helictotrichon sempervirens | Blue Oat Grass

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DESCRIPTION
Helictotrichon sempervirens, or Blue Oat Grass, is a perennial grass known for its silvery-blue foliage and elegant form. Its narrow, arching leaves create a dense, fountain-like clump, adding cool texture to garden landscapes. The fine-textured blades maintain their ornamental value throughout the growing season, making it a popular choice for adding contrast in garden beds, borders, and containers.

In mid to late summer, Blue Oat Grass produces airy flower spikes that rise above the foliage. These delicate panicles start pale green and mature to a soft, straw color, enhancing the plant's refined appearance. Its combination of soothing color and graceful form makes it an ideal addition to a variety of garden settings.

DESCRIPTION
Helictotrichon sempervirens, or Blue Oat Grass, is a perennial grass known for its silvery-blue foliage and elegant form. Its narrow, arching leaves create a dense, fountain-like clump, adding cool texture to garden landscapes. The fine-textured blades maintain their ornamental value throughout the growing season, making it a popular choice for adding contrast in garden beds, borders, and containers.

In mid to late summer, Blue Oat Grass produces airy flower spikes that rise above the foliage. These delicate panicles start pale green and mature to a soft, straw color, enhancing the plant's refined appearance. Its combination of soothing color and graceful form makes it an ideal addition to a variety of garden settings.

 

  • Family: Poaceae
    Height: 2 to 3 feet
    Width: 2 to 3 feet
    Foliage color: Blue-gray
    Flower color: Greenish to tan
    Bloom time: Mid-summer
    Light requirements: Full sun to partial shade
    Water requirements: Low to moderate
    Maintenance: Low
    Growing zone: USDA zones 4 to 8
    Wildlife attractors: Provides cover for small wildlife and attracts pollinators like bees and butterflies

    This plant can be seen in the perennial border at the Bellevue Botanical Garden.

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