Highbush Cranberry vs Mountain Alder - TreeTime.ca

Highbush Cranberry vs Mountain Alder

Alnus incana subsp. tenuifolia

Viburnum trilobum

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

(new stock expected: fall of 2027)

Mountain Alder
Highbush Cranberry

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.

Highbush Cranberry produces attractive white flowers in late June and bears edible fruit that matures to a bright red colour in the late summer.

This shrub, native to much of Canada, is fast growing, and its fruit can be eaten raw or cooked into a sauce.

Mountain Alder Quick Facts

Highbush Cranberry Quick Facts

Zone: 1a
Zone: 2a
Height: 6 m (20 ft)
Height: 4 m (13 ft)
Spread: 3 m (10 ft)
Spread: 2.7 m (9 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: normal
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: medium
Growth form: multi-stemmed, thicket-forming
Spreading: rhizomes - medium, seeds - low, layering - low
Suckering: none


Bark: smooth, gray to brown
Flowers: white clusters
Berries: edible red berries
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no


In row spacing: 0.6 m (2.0 ft)
Between row spacing: 5 m (16 ft)
Native to: AB, BC, SK, YT, NT
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, PE
Other Names: river alder, speckled alder, thin-leaved alder, thinleaf alder, western river alder
Other Names: american cranberrybush, american cranberrybush viburnum, high bush cranberry, kalyna