Blue Boy Clematis vs Yellow Hedysarum - TreeTime.ca

Blue Boy Clematis vs Yellow Hedysarum

Hedysarum sulphurescens

Clematis integrifolia Blue Boy

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Yellow Hedysarum
Blue Boy Clematis

Yellow Hedysarum is a native perennial wildflower recognized for its clusters of pale yellow to creamy-white, pea-like blooms. Flowering from late spring into summer, it adds subtle colour to grasslands, roadsides, and open woods while attracting a variety of pollinators, especially bumblebees.

As a nitrogen-fixing plant, Yellow Hedysarum enriches soils and supports the growth of surrounding vegetation. Its deep taproot and extensive root system make it drought-tolerant and effective at stabilizing soil. Grizzly bears are known to dig up and eat the nutritious taproot. Its resilience and ecological value make it well-suited for restoration, naturalization, pollinator gardens, and erosion control projects.

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.

Yellow Hedysarum Quick Facts

Blue Boy Clematis Quick Facts

Zone: 2b
Zone: 2b
Height: 0.5 m (1.5 ft)
Height: 3 m (10 ft)
Spread: 0.2 m (0.8 ft)
Spread: 0.6 m (2.0 ft)
Light: partial shade, 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: ascending to upright
Spreading: seeds - low
Suckering: medium


Flowers: creamy yellow, in dense spikes
Flowers: steel blue
Bloom time: late spring to summer
Hybrid: no
Hybrid: yes
Catkins: no
Catkins: no


Native to: AB, BC
Other Names: sulphur hedysarum, sulphur sweet-vetch, yellow sweet-vetch