Alnus rubra

Also Known As

Alnus oregona
Oregon Alder
Red Alder

Plant type

tree

size

H: 45'-80'
W: 20'-30'

planting zones

5a-9b

More Options

Alnus rubra plant details

Alnus rubra is a fast-growing broadleaf deciduous tree with green foliage. Attracts beneficial insects, birds and butterflies making it an excellent addition to pollinator gardens. Grows well with sun - dappled shade and even moisture - regular water. Adapts to various soil conditions. Does well in acidic, average, clay, gritty, lean, rich and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Alnus rubra

Plant type: tree
Plant family: betulaceae
Foliage: deciduous green
Mature size: 20 FT - 30 FT - wide, 45 FT - 80 FT - tall
Uses: basket weaving, distinctive bark, shade tree

GROWING CONDITIONS for Alnus rubra

USDA Zones: 5a - 9b
Sun exposure: sun - dappled shade
Watering frequency: even moisture - regular
Resistant to: verticillium wilt
Soil needs: acidic, average, clay, gritty, lean, rich and well-drained

Nursery contributed plant descriptions

?One could not ask for a lovelier sylvan presence? (Peattie); large NW tree whose white bark, with age, becomes mottled in an ?exquisitely harmonious combination? of greens and black; a fine red hardwood and nitrogen-fixing. S-PSh/M-W

By: Forestfarm

So common here in Oregon until we started to worry about water quality and water flows to save our salmon nobody gave this tree much tought. Large and fast growing, it loves water.

By: Heritage Seedlings

Garden photo gallery of Alnus rubra

Photo of Alnus rubra foliage by Forestfarm

By: Forestfarm

By: Forestfarm

Gardening facts about Alnus rubra plant

How to Grow Alnus rubra

Sun Exposure
- sun - dappled shade
Water Needs
- even moisture - regular
Soil Needs
- clay
- acidic
- adaptable
- average
- lean
- well-drained
- rich
- gritty
Special Situation
- verticillium wilt resistant