Pseudoroegneria spicata ssp. spicata (Bluebunch wheatgrass)

Formerly known as Agropyron inermis. Cool season, drought tolerant, long-lived, perennial bunchgrass widely distributed and adapted to most sites including thin nonproductive soils. Starts growth in early spring and has a relatively short cycle to maturity, then renews growth in fall. Generally good palatability to livestock and wildlife.

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Family: Poaceae

Duration: Perennial, long-lived

Growth Habit: Graminoid

Native Status: Native

Season: Cool

Growth Form: Bunchgrass

Mature Height: 36 in.

Annual Precipitation: 8-35 in.

Drought Tolerance: High

Shade Tolerance: Intolerant


Wetland Indicator Status

Fire Resistance: No

Fire Tolerance: Low


Coarse Texture: Yes

Medium Texture: Yes

Fine Texture: Yes

Salinity Tolerance: Low

CaCO3 Tolerance: High

pH Range: 6.6-8.4


Seeds per Pound: 125,600

Seeding Rate: 7-14 PLS lbs/acre

Season: Spring/Fall

Days to Germination:


Anatone - Characterized by rapid establishment, high forage production and the plants' ability to survive and thrive under dry conditions. (Released 2002, source of ecotype: Anatone, WA)

Boardman - Source Identified selection out of Morrow County, OR.

Columbia Germplasm - Adapted to the low-precipitation required for effective ecosystem restoration in Washington’s Columbia Basin. Collected from a historical population located 21 miles northeast of Connell, WA, this release originates from a drier climate zone than all previous Bluebunch wheatgrass releases. (Released 2015, source of ecotype: Adams County, WA)

Goldar - Densely tufted grass with large basal area. More cold tolerant than Whitmar (P. spicata ssp. inermis). Superior yield with strong vigor. (Released 1988, source of ecotype: Umatilla National forest, WA)