Northern Bayberry vs Mountain Alder - TreeTime.ca

Northern Bayberry vs Mountain Alder

Myrica pensylvanica

Alnus incana subsp. tenuifolia

NOT AVAILABLE THIS SEASON - MIGHT RETURN

CUSTOM GROW

Northern Bayberry
Mountain Alder

Northern Bayberry makes an excellent hedge or feature shrub. It will retain its leaves in warmer climates but drops them in colder areas. They produce blue-grey berries that have a wax coating on them that can be used to make candles or soaps.

In colder hardiness zones the leaves turn an attractive orange to red colour in the fall, making it a striking addition to your landscape.

Northern Bayberry is native to Nova Scotia and tolerates both drought and wet conditions. It is also a nitrogen fixer that tolerates poor soil conditions.

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.

Northern Bayberry Quick Facts

Mountain Alder Quick Facts

Zone: 3a
Zone: 1a
Height: 2.4 m (8 ft)
Height: 6 m (20 ft)
Spread: 2.4 m (8 ft)
Spread: 3 m (10 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal
Moisture: normal, wet
Growth rate: slow
Growth rate: medium
Life span: long
Life span: medium
Growth form: multi-stemmed, thicket-forming
Spreading: rhizomes - medium, seeds - low, layering - low
Suckering: medium

Toxicity: Warning: The wax from bayberry fruit is considered toxic and may be carcinogenic.

Bark: smooth, gray to brown
Berries: blue-gray
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: yes


Native to: ON, QC, NS, NB, NL, PE
Native to: AB, BC, SK, YT, NT
Other Names: candlewood, myrique de pennsylvanie, small waxberry, swamp candleberry, tallow bayberry, tallow shrub, tallow tree, tallowshrub
Other Names: river alder, speckled alder, thin-leaved alder, thinleaf alder, western river alder