Blue Oat Grass
Helictotrichon sempervirens
SKU
03997
Graceful fountains of silver-blue blades form neat ornamental clumps that combine well with other grasses. Airy, beige to light brown, terminal panicles appear mid- to late summer. A reliable and attractive accent or specimen, perfect for rock gardens. May remain evergreen in mild winter regions.
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Full sun
Water regularly, allowing soil to dry slightly between intervals.
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CHECK RETAILERS FOR AVAILABILITY:
- 101 Market
8980 Quantrelle Ave. N.e. Otsego MN 55330
- 14th Street Garden Center
793 Jersey Ave. Jersey City NJ 07303
- 3rd Avenue Floral & Greenhouse
1110 3rd Ave. West Dickinson ND 58601
- 4 Ever Green Ldsp. & Dgn
21457 214th Circle Ave Milford IA 51351
Botanical Pronunciation | hel-ik-toh-TREE-kon sem-per-VY-renz |
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Average Size at Maturity | Moderate growing; reaches 2 to 3 ft. tall and wide. |
Bloom Time | Summer |
Design Ideas | Blue Oat Grass is at home in desert gardens as well as in the traditional perennial border. Plant beside landscape boulders, in rock gardens or at the edges of natural pools. Particularly beautiful planted in masses and paired with blue-gray Mediterranean plants. |
Deciduous/ Evergreen | Semi-evergreen |
Flower Color | Brown |
Foliage Color | Blue-green |
Garden Style | Contemporary, Mediterranean, Rustic |
Growth Habit | Clumping |
Growth Rate | Moderate |
Landscape Use | Border, Erosion Control, Firescaping/Fire Wise, Green Roof, Mass Planting, Rock Garden, Ground Cover |
Light Needs | Full sun |
Soil Needs | All-Purpose Plant Food |
Special Feature | Clump Forming, Dramatic Foliage Color, Easy Care, Extreme Cold Hardiness, Improved Pest and Disease Resistance, Waterwise |
Water Needs | Moderate |
Watering Needs | Water regularly, allowing soil to dry slightly between intervals. |
Grows easily in average, well-drained soils. Water deeply, regularly during the first growing season to establish an extensive root system. Once established, water regularly, but allow to dry out slightly between intervals for best foliage color. Drought tolerant in cool climates. Prune away old, faded foliage before new growth emerges in spring.
This Plant's Growing Zones: 4 - 9

Your climate may be too cold for this plant