Prairies and grassy bluffs to woodlands and coniferous forests, from near sea level to nearly sub-alpine. Along the coast and inland along the major river valleys (Pojar and MacKinnon, 1994).
Well drained Moder and Mull humus forms (Klinka et al., 1989).
Nitrogen rich soils (Klinka et al., 1989).
Slightly acid soils.
Dry to mesic, water-shedding and water-receiving sites (Klinka et al., 1989).
Shade intolerant (Klinka et al., 1989)
Climax species in meadow-like communities.
Component of Garry oak-camas-white fawn lily meadows.