Black-Eyed Susan vs Yellow Hedysarum - TreeTime.ca

Black-Eyed Susan vs Yellow Hedysarum

Rudbeckia hirta

Hedysarum sulphurescens

NOT AVAILABLE THIS SEASON - MIGHT RETURN

CUSTOM GROW

Black-Eyed Susan
Yellow Hedysarum

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

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.

Yellow Hedysarum is a native perennial wildflower recognised for its clusters of bright yellow pea-like blooms. It adds colour to grasslands, roadsides, and open woods. It is also a nitrogen fixer, which helps improve soil fertility. Because of its deep root system, it contributes to slope and soil stabilisation.

The plant provides forage for wildlife and cover for small animals, especially its roots. Its flowers attract pollinators such as bees.

Yellow Hedysarum plays an important role in prairie and foothill ecosystems. It is well-suited for ecological restoration, naturalisation, pollinator gardens, and erosion control projects.

Black-Eyed Susan Quick Facts

Yellow Hedysarum Quick Facts

Zone: 3a
Zone: 2b
Height: 0.8 m (2.5 ft)
Height: 0.5 m (1.5 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.2 m (0.8 ft)
Light: full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: very fast
Growth rate: fast
Life span: short
Life span: short
Growth form: ascending to upright
Spreading: seeds - low
Suckering: none
Maintenance: medium


Flowers: bright yellow; daisy-like
Flowers: creamy yellow, in dense spikes
Bloom time: early summer to fall
Bloom time: late spring to summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: SK, MB, ON
Native to: AB, BC
Other Names: hairy coneflower
Other Names: sulphur hedysarum, sulphur sweet-vetch, yellow sweet-vetch