River Birch vs Black Locust - TreeTime.ca

River Birch vs Black Locust

Robinia pseudoacacia

Betula nigra

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Black Locust
River Birch

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.

River Birch has beautiful, peeling, brown bark that reveals camel-colored and pink beneath. It is more borer resistant than white bark birches, which makes it a much longer-lived landscape tree.

Black Locust Quick Facts

River Birch Quick Facts

Zone: 3a
Zone: 3a
Height: 12 m (40 ft)
Height: 12 m (39 ft)
Spread: 8 m (25 ft)
Spread: 5 m (16 ft)
Moisture: dry, normal
Moisture: normal, wet
Light: full sun
Light: full sun
Hybrid: no
Hybrid: no
Catkins: no
Catkins: yes
Flowers: Creamy white flowers in a pyramidal shape bloom in may-june
Bark: dark reddish brown to balck with furrows
Bark: dark gray-brown or pinkish-brown and scaly
Growth rate: fast
Growth rate: fast
Life span: long
Life span: medium
Suckering: high
Suckering: low




Other Names: false acacia, yellow locust
Other Names: black birch, water birch