Black Locust vs Blue Boy Clematis - TreeTime.ca

Black Locust vs Blue Boy Clematis

Robinia pseudoacacia

Clematis integrifolia Blue Boy

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Black Locust
Blue Boy Clematis

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.

Blue Boy Clematis is a cold-hardy, fast growing, woody climbing vine. Hundreds of stunning steel-blue bell shaped flowers adorn the vine throughout the summer that droop and appear to hang in the air. The fibrous stems spread and create a fan-like symmetry shape.

This species will do best with support from a trellis, fence, or even other shrubs or tree stumps.

The Blue Boy Clematis was developed in Manitoba, Canada in 1947 by famous breeder Frank L. Skinner by crossing C. integrifolia x C. viticella, but it didn’t gain popularity until the 1990’s.

Black Locust Quick Facts

Blue Boy Clematis Quick Facts

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Zone: 3a
Zone: 2b
Height: 12 m (40 ft)
Height: 3 m (10 ft)
Spread: 8 m (25 ft)
Spread: 0.6 m (2.0 ft)
Moisture: dry, normal
Moisture: normal, wet
Light: full sun
Light: partial shade, full sun
Hybrid: no
Hybrid: yes
Catkins: no
Catkins: no
Flowers: Creamy white flowers in a pyramidal shape bloom in may-june
Flowers: steel blue
Bark: dark reddish brown to balck with furrows
Growth rate: fast
Growth rate: medium
Life span: long
Life span: medium
Suckering: high
Suckering: medium




Other Names: false acacia, yellow locust