Black Hawthorn vs Blue Boy Clematis - TreeTime.ca

Black Hawthorn vs Blue Boy Clematis

Crataegus douglasii

Clematis integrifolia Blue Boy

NOT AVAILABLE THIS SEASON

NOT AVAILABLE THIS SEASON

Black Hawthorn
Blue Boy Clematis

Black Hawthorn is a versatile plant that is native to wetlands and other areas with moist soils, but can also tolerate dry soils. This plant can be grown as a short shrub, or a tree reaching 30 feet tall.

Black Hawthorn is valued for erosion control and attracting pollinators. It also makes an attractive flowering ornamental that can be planted as a specimen or pruned as a hedge. It is commonly used in shelterbelts.

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 Hawthorn Quick Facts

Blue Boy Clematis Quick Facts

Zone: 3a
Zone: 2b
Height: 8 m (25 ft)
Height: 3 m (10 ft)
Spread: 5 m (15 ft)
Spread: 0.6 m (2.0 ft)
Moisture: any
Moisture: normal, wet
Light: partial shade, full sun
Light: partial shade, full sun
Hybrid: no
Hybrid: yes
Catkins: no
Catkins: no
Fall colour: yellow to red
Berries: purplish-black pomes
Flowers: white
Flowers: steel blue
Bark: brown to gray
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: medium
Suckering: medium
Suckering: medium




Other Names: crataegus columbiana, douglas hawthorn, douglas' thornapple