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White Oak vs Green Alder

Quercus alba

Alnus crispa

White Oak
Green Alder

White Oak is large, long-lived tree with an irregular trunk divided into spreading, often horizontal, stout branches. A highly adaptable tree, White Oak features beautiful green leaves that turn red-purple in the fall and green acorns.

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.

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

WHITE OAK QUICK FACTS

GREEN ALDER QUICK FACTS

Zone: 4a
Zone: 1a
Height: 30 m (98 ft)
Height: 7 m (23 ft)
Spread: 3 m (10 ft)
Moisture: dry, normal
Moisture: any
Light: partial shade, full sun
Light: any
Fuzz/fluff: yes
Catkins: yes
Fall colour: dark red
Bark: light to dark gray to white, fissures and scaly
Nuts: nuts within acorns; attractive for wildlife
Growth rate: slow
Growth rate: fast
Life span: long
Life span: 50 years
Maintenance: medium
Maintenance: low
Suckering: none
Suckering: high
Pollution tolerance: high
Pollution tolerance: medium


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





Ships To Canada: yes
Ships to USA: yes
Ships To Canada: yes
Ships to USA: no