Western Mountain Ash

Sorbus sitchensis M. Roem. - Rose family

Size

Mature Height: Up to around 12.0 feet

Plant Type: Tree, Shrub

Features

Flower Color: White, Pink

Bloom Time: Early Spring, Mid Spring, Late Spring, Early Summer

Conditions

Shade Tolerance: Tolerant

Ecosystem Interactions

Pollinators: Larval Host (Moth)

Larval Species depending on Western Mountain Ash: Acronicta barnesii, Acronicta radcliffei, Acronicta superans, Malacosoma californica pluvialis

Native Range

USA: Alaska, California, Idaho, Montana, Oregon, Washington
CAN: Alberta, British Columbia, Yukon

Regional Native Status: L48 (N), AK (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.