Blue Boy Clematis vs Black-Eyed Susan - TreeTime.ca

Blue Boy Clematis vs Black-Eyed Susan

Clematis integrifolia Blue Boy

Rudbeckia hirta

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Blue Boy Clematis
Black-Eyed Susan

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-Eyed Susan is a striking native wildflower known for its bright yellow, daisy-like flowers with dark center disks. With deadheading, the plant can bloom for an extended period, from mid-summer to early fall. These cheerful flowers attract a variety of pollinators, including bees and butterflies. Adding to its ecological value, the plant also acts as a host for the Wavy-Lined Emerald Moth (Synchlora aerata) and the Silvery Checkerspot (Chlosyne nycteis) butterfly.

While it is typically a short-lived perennial or biennial, the plant freely self-seeds. This allows it to persist in the landscape, particularly in natural areas where it can spread and establish itself. This plant is drought-tolerant, salt-tolerant, and deer and rabbit-resistant, making it ideal for challenging environments. The Black-Eyed Susan is well suited to wildflower gardens, pollinator gardens, as well as slopes, banks, and naturalized areas.

Blue Boy Clematis Quick Facts

Black-Eyed Susan Quick Facts

Zone: 2b
Zone: 3a
Height: 3 m (10 ft)
Height: 0.8 m (2.5 ft)
Spread: 0.6 m (2.0 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: normal, wet
Moisture: dry, normal
Growth rate: medium
Growth rate: very fast
Life span: medium
Life span: short
Suckering: medium
Suckering: none
Maintenance: medium


Flowers: steel blue
Flowers: bright yellow; daisy-like
Bloom time: early summer to fall
Hybrid: yes
Hybrid: no
Catkins: no
Catkins: no


Native to: SK, MB, ON
Other Names: hairy coneflower