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

White Birch (Paper Birch) vs Sitka Alder

Betula papyrifera

Alnus alnobetula subsp. sinuata

COMING SOON

(new stock expected: fall of 2025)

CUSTOM GROW

White Birch (Paper Birch)
Sitka 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.

Sitka Alder is a native deciduous shrub or small tree that often forms dense thickets. Its extensive root system stabilizes slopes and streambanks. Nitrogen-fixing capabilities and nutrient-rich leaf litter improve soil fertility, creating better growing conditions for surrounding plants. These qualities make it especially effective in disturbed or erosion-prone sites.
Often found in moist, high-elevation mountain environments, Sitka Alder also enhances habitat by providing cover and structure in both riparian and upland areas. Birds and small mammals utilize it for nesting, and its seeds serve as a food source.
Note: We use Sitka Alder for Alnus alnobetula subsp. sinuata. This species is also known by many other common names, including Mountain Alder, Green Alder, and others. Please confirm the scientific name to ensure you are ordering the correct plant.

White Birch (Paper Birch) Quick Facts

Sitka Alder Quick Facts

Zone: 2a
Zone: 2a
Height: 18 m (60 ft)
Height: 5 m (15 ft)
Spread: 11 m (35 ft)
Spread: 3 m (10 ft)
Light: full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: wet
Growth rate: fast
Growth rate: medium
Life span: long
Life span: medium
Growth form: upright to prostrate, thicket-forming
Spreading: seed - medium, layering - medium
Suckering: none


Bark: white, papery, peeling
Bark: redish-brown to grey, smooth
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, YT, NT
Other Names: american white birch, canoe birch, paper birch
Other Names: wavy leaf alder