Labrador Tea vs Sitka Alder - TreeTime.ca

Labrador Tea vs Sitka Alder

Alnus alnobetula subsp. sinuata

Rhododendron groenlandicum (Ledum groenlandicum)

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Sitka Alder
Labrador Tea

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.

Labrador Tea is slow-growing evergreen shrub native to the boreal forests of Canada.

It thrives in wet, swampy conditions.

Labrador Tea has narrow, leathery, dark green leaves, topped by a cluster of white flowers in the spring. It is a perfect ornamental shrub for boggy, wet areas of your property.

Sitka Alder Quick Facts

Labrador Tea Quick Facts

Zone: 2a
Zone: 1a
Height: 5 m (15 ft)
Height: 0.5 m (1.5 ft)
Spread: 3 m (10 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: any
Moisture: wet
Moisture: any
Growth rate: medium
Growth rate: slow
Life span: medium
Life span: short
Growth form: upright to prostrate, thicket-forming
Spreading: seed - medium, layering - medium
Suckering: none


Toxicity: slightly toxic if ingested
Foliage: leathery, orange undersides, evergreen
Fall colour: rust orange
Bark: redish-brown to grey, smooth
Flowers: white, fragrant
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: no


Native to: AB, BC, YT, NT
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: wavy leaf alder