Variegated Dogwood vs Mountain Alder - TreeTime.ca

Variegated Dogwood vs Mountain Alder

Alnus incana subsp. tenuifolia

Cornus alba argenteo-marginata

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Mountain Alder
Variegated Dogwood

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.

Variegated Dogwood is a small shrub that is often used in the first row of a shelterbelt, as a hedge, or for soil stabilization projects. It has the same distinctive red bark, white flowers, and berries as Red Osier Dogwood.

The key difference between the two is the leaves. Where Red Osier's leaves are green throughout, Variegated Dogwood has a white outline around each leaf, giving this shrub a distinctive look.

Mountain Alder Quick Facts

Variegated Dogwood Quick Facts

Zone: 1a
Zone: 3a
Height: 6 m (20 ft)
Height: 2.7 m (9 ft)
Spread: 3 m (10 ft)
Spread: 2.1 m (7 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: any
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: medium
Growth form: multi-stemmed, thicket-forming
Spreading: rhizomes - medium, seeds - low, layering - low
Suckering: medium


Foliage: variegated white edges
Bark: smooth, gray to brown
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no


Native to: AB, BC, SK, YT, NT
Other Names: river alder, speckled alder, thin-leaved alder, thinleaf alder, western river alder
Other Names: tatarian dogwood