Speckled Alder

Alnus incana (L.) Moench ssp. rugosa (Du Roi) R.T. Clausen - Birch family

Size

Mature Height: Up to around 16.0 feet

Planting Distance: 6.0 feet

Plant Type: Tree, Shrub

Root Depth: 24 inches

Growth Form: Multiple Stem

Growth Rate: Moderate

Features

Flower Color: Yellow

Conspicuous Flowers: No

Bloom Time: Early Spring

Seasonal Growth: Spring and Summer

Evergreen: No

Fall Colors: No

Conditions

Shade Tolerance: Intermediate

Clay Soil Tolerance: Yes

Sandy Soil Tolerance: No

Drought Tolerance: Low

Flood Tolerance: High

Fire Tolerance: Medium

Salt Tolerance: Low

Native Range

USA: Alaska, Arizona, California, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Montana, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Dakota, Ohio, Oregon, Pennsylvania, Rhode I., Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
CAN: Alberta, British Columbia, Newfoundland, Manitoba, New Brunswick, Newfoundland, Northwest Territorie, Nova Scotia, Nunavut, Ontario, Prince Edward I., Québec, Saskatchewan, Yukon

Regional Native Status: L48 (N), CAN (N), SPM (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.