Rockspirea

Holodiscus dumosus (Nutt. ex Hook.) A. Heller - Rose family

Size

Mature Height: Up to around 3.0 feet

Planting Distance: 8.5 feet

Plant Type: Shrub

Root Depth: 12 inches

Growth Form: Thicket Forming

Growth Rate: Moderate

Features

Flower Color: White

Conspicuous Flowers: Yes

Bloom Time: Late Summer

Seasonal Growth: Summer and Fall

Evergreen: No

Fall Colors: No

Conditions

Shade Tolerance: Intolerant

Clay Soil Tolerance: No

Sandy Soil Tolerance: Yes

Drought Tolerance: High

Flood Tolerance: None

Fire Tolerance: Medium

Salt Tolerance: None

Ecosystem Interactions

Pollinators: Native Bees; Larval Host (Butterfly); Larval Host (Moth)

Larval Species depending on Rockspirea: Limenitis weidemeyerii, Oncocnemis columbia

Native Range

USA: Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Texas, Utah, Washington, Wyoming
CAN: British Columbia
MEX: Mexico Central, Mexico Northeast, Mexico Northwest, Mexico Southwest

Regional Native Status: L48 (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.