Helictotrichon sempervirens

Considered the Best Mid-Sized Blue-Leaved Grass
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Features to Note


4 - 8

Mature Height

5 Feet

Mature Width

24 IN

Light Requirements

Full Sun

Moisture Requirements

Moist, well-drained

Soil Tolerance

Normal, loamy, Clay, Sandy

Zone Compatibility

This Variety's Zone Range
4 - 8
My Hardiness Zone

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The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatibility range of this variety before ordering.


Award of Garden Merit by the Royal Horticultural Society

This award-winning, semi-evergreen, ornamental grass, commonly called blue oat grass, is considered the best of the mid-sized blue-leaved grasses. It grows in attractive round clumps and features narrow steel-blue leaf blades. Airy tan panicles appear in early to midsummer, sitting about 2 feet above the foliage.

A fine specimen plant, it can also be massed for a groundcover effect and makes an excellent partner in mixed beds and borders. It is hardy, salt and drought tolerant, and deer and rabbit resistant. Generally, a low-maintenance plant, it does benefit from being cut back in late winter.


Genus: Helictotrichon
Species: sempervirens
Item Form: 1-Gallon
Category: Grasses
Bloom Season Start: Early Summer
Bloom Season End: Mid Summer
Bloom Color: Cream
Habit: Mound-shaped
USDA Zone Low: 4
USDA Zone High: 8
Uses: Beds, Border, Containers
Zone: 4, 5, 6, 7, 8
State Shipping Restrictions: GU, HI, PR, VI
Discount Exempt: No



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