River Alder vs Green Alder - TreeTime.ca

River Alder vs Green Alder

Alnus incana

Alnus crispa

NOT AVAILABLE THIS SEASON

SOLD OUT

River Alder
Green Alder

River Alder is a large shrub or small tree with a multi-stemmed, spreading habit. It is an excellent tree to plant if you want to stabilize the soil near rivers and creeks.

Unlike the other alder varieties, River Alder is attractive enough to be included in riverside plantings by municipal and provincial park organizations.

Green Alder is a cold hardy, native shrub. It is often planted on infertile sites so it can fix nitrogen from the air and improve the soil quality.

Green Alder is known for its smooth grey bark and attractive shiny green leaves; it is commonly used in reclamation.

River Alder Quick Facts

Green Alder Quick Facts

Zone: 1a
Zone: 1a
Height: 8 m (25 ft)
Height: 7 m (23 ft)
Spread: 4 m (12 ft)
Spread: 3 m (10 ft)
Moisture: normal, wet
Moisture: any
Light: full sun
Light: any
Hybrid: no
Hybrid: no
Catkins: yes
Catkins: yes
Fall colour: yellow to orange
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Suckering: none
Suckering: high


In row spacing: 0.9 m (3 ft)
Between row spacing: 5 m (16 ft)


Other Names: mountain alder, sitka alder