Western Mountain Ash vs Blue Boy Clematis - TreeTime.ca

Western Mountain Ash vs Blue Boy Clematis

Sorbus scopulina

Clematis integrifolia Blue Boy

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Western Mountain Ash
Blue Boy Clematis

Western Mountain Ash is a popular ornamental tree native to the western part of North America. Its attractive, white clusters of flowers bloom in early summer, making way for red, yellow or orange fruit in the fall. If the fruit doesn't catch your eye, Western Mountain Ash's autumn colours will capture your–and the birds's–attention.

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.

Western Mountain Ash Quick Facts

Blue Boy Clematis Quick Facts

Zone: 2a
Zone: 2b
Height: 9 m (30 ft)
Height: 3 m (10 ft)
Spread: 6 m (20 ft)
Spread: 0.6 m (2.0 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: medium
Suckering: none
Suckering: medium


Flowers: white
Flowers: steel blue
Berries: bunches of orange-red berries appear in late summer
Hybrid: no
Hybrid: yes
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, YT, NT
Other Names: cascade mountain ash, greene mountain ash