Common Caragana vs Red Alder - TreeTime.ca

Common Caragana vs Red Alder

Caragana arborescens

Alnus rubra

CUSTOM GROW

Common Caragana
Red Alder

Common Caragana is a fast growing shrub that's known for its exceptional hardiness and drought tolerance. Although it's most commonly planted in shelterbelts, Common Caragana is also an excellent hedge or feature shrub.

Note: in warmer areas, this species can be difficult to contain once planted. Use the right plant in the right place.

Red Alder is a fast-growing deciduous tree native to western North America. Through its nitrogen-fixing roots and nitrogen-rich leaf litter, Red Alder improves soil fertility and supports the growth of surrounding plants. This makes it especially valuable on disturbed sites following logging, construction, or fire. A classic pioneer species, it often colonizes bare ground and enhances conditions for longer-lived conifers to follow.

Red Alder stabilizes soils on streambanks and disturbed slopes, reducing erosion and aiding restoration. It also supports wildlife: birds and small mammals eat the seeds and buds, deer and elk browse the foliage, and bees are drawn to the pollen-rich catkins in spring.

Red Alder also has commercial importance, with its strong yet workable wood widely used for furniture, cabinetry, veneer, and pulp. The tree takes its name from the rusty-red color the bark turns when cut or bruised.

Common Caragana Quick Facts

Red Alder Quick Facts

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Zone: 1b
Zone: 5b
Height: 4 m (13 ft)
Height: 15 m (50 ft)
Spread: 1.5 m (5 ft)
Spread: 9 m (30 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: medium
Growth form: upright, rounded to conical
Spreading: seeds - medium, stump sprouting - medium
Suckering: none
Maintenance: medium


Bark: smooth, grey
Flowers: yellow, in spring
Fruit: pod like fruits
Hybrid: no
Hybrid: no
Catkins: no
Catkins: yes

In row spacing: 0.3 m (1.0 ft)

Between row spacing: 5 m (16 ft)
Native to: BC
Other Names: black karagana, caragana, pea tree, siberian pea shrub, yellow acacia
Other Names: oregon alder, pacific coast alder, western alder