In Colorado found from 4500 to 9000'. Waste places, most cropped areas, pastures, and grasslands on gravely and sandy soils. Chiefly in disturbed or mesic to moist sites. Often as a weed of cultivated lands, along waterways and in meadows, occasionally in mountain brush and conifer communities. Does best on mostly moist or fertile soils.
Roots can penetrate hard soils.
Tolerates pH ranges from 4.5-8.0 and grows vigorously on alkaline soils. Reproduction Perennial grass, reproduces by seeds or rhizomes. Flowers late May to September. Seeds germinate in fall or spring. Capable of producing viable seed more than once per season.