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White Oak vs Black Locust

Quercus alba

Robinia pseudoacacia

White Oak
Black Locust

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.

Black Locust is an attractive tree. Its distinctive leaves are made of about a dozen bright green leaflets. It also notable for its fragrant white flowers, which smell of citrus.

Black Locust can grow in many situations, but prefers dry areas with lots of sun. It is robust and is an excellent choice for establishing shade in dry, open areas.

Important note: Much of the Black Locust is toxic to humans and livestock, including seeds, bark, and leaves.

WHITE OAK QUICK FACTS

BLACK LOCUST QUICK FACTS

Zone: 4a
Zone: 3a
Height: 30 m (98 ft)
Height: 12 m (40 ft)
Spread: 8 m (25 ft)
Moisture: dry, normal
Moisture: dry, normal
Light: partial shade, full sun
Light: full sun
Fall colour: dark red
Flowers: Creamy white flowers in a pyramidal shape bloom in may-june
Bark: light to dark gray to white, fissures and scaly
Bark: dark reddish brown to balck with furrows
Nuts: nuts within acorns; attractive for wildlife
Growth rate: slow
Growth rate: fast
Life span: long
Life span: long
Maintenance: medium
Maintenance: low
Suckering: none
Suckering: high
Pollution tolerance: high
Pollution tolerance: high







Ships To Canada: yes
Ships to USA: yes
Ships To Canada: yes
Ships to USA: yes