Common Caragana vs Black Locust - TreeTime.ca

Common Caragana vs Black Locust

Caragana arborescens

Robinia pseudoacacia

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(new stock expected: fall of 2025)

Common Caragana
Black Locust

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.

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.

Common Caragana Quick Facts

Black Locust Quick Facts

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Zone: 1b
Zone: 3a
Height: 4 m (13 ft)
Height: 12 m (40 ft)
Spread: 1.5 m (5 ft)
Spread: 8 m (25 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: medium
Life span: long
Suckering: none
Suckering: high
Maintenance: medium


Bark: dark reddish brown to balck with furrows
Flowers: yellow, in spring
Flowers: Creamy white flowers in a pyramidal shape bloom in may-june
Fruit: pod like fruits
Seeds: dark brown peapod-like pods
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no

In row spacing: 0.3 m (1.0 ft)

Between row spacing: 5 m (16 ft)
Other Names: black karagana, caragana, pea tree, siberian pea shrub, yellow acacia
Other Names: false acacia, yellow locust