Slender Wheatgrass

(Agropyron trachycaulum) 

Slender Wheatgrass is a short-lived, perennial bunchgrass native to the mountains and higher inter-mountain areas of the western United States. It is a cool-season grass with a high palatability and very good seedling vigor. Since the grass is short-lived (3 to 4 years) under natural conditions, it should not be planted alone, unless it is intended for use as a temporary dryland pasture. The seed is easily drilled and should be planted no deeper than 2.5 dm (1 in.). Planting dates should be during the two-month period with favorable moisture (either spring or fall).



5.6 to 7.8 kg PLS/hectare

5 to 7 lbs. PLS/acre



134,000 per lb. (0.46 kg)





The Agricultural Experiment Stations of Washington, Oregon and Idaho, the Soil Conservation Service; and the USDA Agricultural Research Service released Primar Slender Wheatgrass in 1964. Primar is a vigorous, early growing Wheatgrass that is semi-erect and slender. Seed production is moderately heavy. It is adapted to short-lived, dryland seedings in the areas of Washington, Oregon and Idaho that have a minimum of 36 cm (14 in.) of rainfall.


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