White Birch (Paper Birch) vs Mountain Alder - TreeTime.ca

White Birch (Paper Birch) vs Mountain Alder

Betula papyrifera

Alnus incana subsp. tenuifolia

CUSTOM GROW

White Birch (Paper Birch)
Mountain Alder

White Birch is a large, attractive deciduous tree. This fast-growing, cold hardy species has distinctive white papery bark that peels in layers, making it a beautiful ornamental or accent tree. White Birch also makes great firewood.

Mountain Alder is a native cold-hardy shrub or small tree often found along streams and in moist forested habitats. Its nitrogen-fixing ability enriches soils and supports surrounding vegetation, while its extensive root system helps stabilize streambanks and slopes. The fast growth rate allows it to establish quickly on disturbed sites, making it especially valuable in reclamation, restoration, and erosion control projects.

Often forming dense thickets, Mountain Alder enhances habitat quality in riparian and upland areas. It provides food and cover for various wildlife, including birds and small mammals. Recognized as an important species for soil and water conservation, it is well suited for riparian planting, naturalization, and ecological restoration.

Note: We use Sitka Alder for Alnus incana subsp. tenuifolia. This species is also known by many other common names, including Grey Alder, River Alder, and others. Please confirm the scientific name to ensure you are ordering the correct plant.

White Birch (Paper Birch) Quick Facts

Mountain Alder Quick Facts

Lowest Price: $1.49 - SAVE UP TO 75%
Zone: 2a
Zone: 1a
Height: 18 m (60 ft)
Height: 6 m (20 ft)
Spread: 11 m (35 ft)
Spread: 3 m (10 ft)
Light: full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: normal, wet
Growth rate: fast
Growth rate: medium
Life span: long
Life span: medium
Growth form: multi-stemmed, thicket-forming
Spreading: rhizomes - medium, seeds - low, layering - low
Suckering: none


Bark: white, papery, peeling
Bark: smooth, gray to brown
Seeds: located within the catkins
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: yes


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, PE
Native to: AB, BC, SK, YT, NT
Other Names: american white birch, canoe birch, paper birch
Other Names: river alder, speckled alder, thin-leaved alder, thinleaf alder, western river alder