Bebbs Willow vs Mountain Alder - TreeTime.ca

Bebbs Willow vs Mountain Alder

Alnus incana subsp. tenuifolia

Salix bebbiana

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Mountain Alder
Bebbs Willow

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.

This large shrub is native to all of Canada and most of the United States. Its leaves are green on the top and grey on the bottom, and it produces catkin based flowers and non-edible fruit which appears very similar to a group of pine needles.

Bebb's Willow is foraged for by many species including elk, hares, beavers and various birds. It is commonly used to prevent erosion and protect aquatic environments due to its preference for shady, moist environments.

Mountain Alder Quick Facts

Bebbs Willow Quick Facts

Zone: 1a
Zone: 1a
Height: 6 m (20 ft)
Height: 5 m (15 ft)
Spread: 3 m (10 ft)
Spread: 3 m (10 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: normal, wet
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: short
Growth form: multi-stemmed, thicket-forming
Spreading: rhizomes - medium, seeds - low, layering - low
Suckering: high


Bark: smooth, gray to brown
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: yes


Native to: AB, BC, SK, YT, NT
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: river alder, speckled alder, thin-leaved alder, thinleaf alder, western river alder
Other Names: beak willow, diamond willow, livid willow, long-beaked willow, smooth bebb willow, smooth gray willow