Sweet Gale vs Red Alder - TreeTime.ca

Sweet Gale vs Red Alder

Myrica gale

Alnus rubra

CUSTOM GROW

CUSTOM GROW

Sweet Gale
Red Alder

Sweet Gale is a native, nitrogen-fixing shrub known for its aromatic foliage. Tiny glands on the leaves release a balmy, bay leaf-like scent with floral and citrus notes. In spring, the yellowish male catkins provide one of the earliest sources of pollen for bees and other insects. While later in the season, the female catkins produce seeds that are eaten by waterfowl. Sweet Gale is dioecious, meaning male and female flowers occur on separate plants.

Sweet Gale thrives in wet, acidic soils and is commonly found along wetlands and lakeshores. It can help stabilize shorelines, while its dense growth provides valuable cover for wildlife. It is well-suited for naturalization, wetland restoration, and erosion control projects.

Red Alder is a fast-growing deciduous tree native to western North America. Its fixes nitrogen, which enriches soils and supports the growth of surrounding plants. Ideal for sites with poor soil conditions, or areas disturbed by logging, construction or fire.
It provides shade in riparian areas, creating cover for fish. Its seeds and buds are eaten by birds and small mammals, while the foliage provides browse for wildlife. The catkins release clouds of pollen attracting bees and other insects.
The Red Alder gets its namesake from the rusty-red color the bark turns when bruised.

Sweet Gale Quick Facts

Red Alder Quick Facts

Zone: 1b
Zone: 5b
Height: 1.2 m (4 ft)
Height: 15 m (50 ft)
Spread: 0.9 m (3 ft)
Spread: 9 m (30 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: medium
Growth form: upright, thicket-forming
Growth form: upright, rounded to conical
Spreading: suckering - medium, seeds - low
Spreading: seeds - medium, stump sprouting - medium


Foliage: dotted with yellow glands, sweet scented
Fall colour: yellow
Bark: reddish-purple, dotted with yellow glands
Bark: smooth, grey
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: yes


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: BC
Other Names: bog myrtle, meadow-fern, sweet bayberry, sweetgale
Other Names: oregon alder, pacific coast alder, western alder