Blue Boy Clematis vs Hairy Golden Aster - TreeTime.ca

Blue Boy Clematis vs Hairy Golden Aster

Heterotheca villosa

Clematis integrifolia Blue Boy

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Hairy Golden Aster
Blue Boy Clematis

Hairy Golden Aster is a native perennial wildflower known for its clusters of bright yellow, daisy-like blooms. They bloom from mid-summer into fall, providing late-season colour and a valuable nectar source for pollinators, including a variety of bee species.

Flowers mature into fluffy seed heads and can self-seed readily. Removing spent blooms helps manage their spread, but some people will choose to leave a few seed heads to provide food for birds. Hairy Golden Aster grow in bushy clumps, tolerates poor sandy soils, and once established, are among the most drought-tolerant wildflowers. They are well-suited for pollinator gardens, restoration, naturalization, and xeriscaping projects.

As a perennial, it dies back to the crown each winter, it will regrow from the base in the spring. Avoid disturbing the crown during late winter to ensure healthy growth the following season.

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.

Hairy Golden Aster Quick Facts

Blue Boy Clematis Quick Facts

Zone: 3a
Zone: 2b
Height: 0.5 m (1.5 ft)
Height: 3 m (10 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.6 m (2.0 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: fast
Growth rate: medium
Life span: short
Life span: medium
Growth form: upright, clump-forming
Spreading: seeds - high, rhizomes - medium
Suckering: medium
Maintenance: medium


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


Other Names: hairy false golden aster, hairy false goldenaster, hairy goldenaster