Grows in a mild and humid region with dry summers. Occurs on the Pacific Coast of North America from central BC south to central California. Extends from sea level to 2300m at its southernmost range.
Tolerates a wide range of soil textures and parent materials but grows best on well drained, deep, sandy loams.
Grows best on nitrogen rich soils.
pH 5 to 5.5.
Grows best on moist, well-drained soils but does tolerate drought.
Seedlings require some shade to establish but then thrive in full sun.
Long-lived pioneer species in Cedar-Hemlock Zone. Climax or sub-climax species in Coastal Douglas-fir Zone with regular ground fires.
Common constituent of Garry oak - Arbutus Community.