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Green Needle Grass

Nassella viridula

Photo coming soon
Category
Grass / Sedge / Rush
Sun
Full
Soil moisture
Medium to Dry
Bloom time
May–Jul
Notes
Cool

About Green Needle Grass

Green Needle Grass is a resilient cool-season perennial bunchgrass that brings both structural elegance and ecological value to the native prairie landscape. Easily identified by its deep green, fine-textured foliage, it produces distinctive seed heads with long, needle-like awns that catch the light from May through July. This versatile grass typically reaches heights of 1.5 to 3 feet, forming dense tufts that provide essential nesting and escape cover for ground-nesting birds and other wildlife. Native to a wide range across the Great Plains and Western North America, it is remarkably drought-tolerant and cold-hardy, thriving in full sun and well-drained, medium to dry soils. Its deep fibrous root system, which can reach depths of over five feet, makes it a cornerstone species for soil stabilization and restoration projects. For the best establishment, sow seeds in the fall to allow for natural cold stratification. Whether used in a low-maintenance garden or a large-scale meadow, Green Needle Grass offers a classic prairie aesthetic with high forage value for livestock and wildlife alike.

Native range

Native to 17 states:

ArizonaCaliforniaColoradoIowaIdahoIllinoisKansasMinnesotaMontanaNorth DakotaNebraskaNew MexicoNew YorkSouth DakotaUtahWisconsinWyoming

County range map

BONAP county-level native range map for Nassella viridula

Range map courtesy of BONAP (Biota of North America Program).

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