Harebell vs Sulphur-Flower Buckwheat - TreeTime.ca

Harebell vs Sulphur-Flower Buckwheat

Campanula rotundifolia

Eriogonum umbellatum

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Harebell
Sulphur-Flower Buckwheat

Harebell is a native perennial wildflower known for its bell-shaped, blue-violet flowers. The noddling blooms occur in clusters at the top of slender stems. Blooming in bursts from summer to fall, the flowers attract pollinators such as butterflies, bees, and hummingbirds.

Regular deadheading encourages additional blooms, extending its floral display through the season. Harebell prefers areas with cooler summer climates and does poorly in those that get too hot and humid. It is well suited for native wildflower gardens, pollinator gardens, and naturalization 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.

Sulphur-Flower Buckwheat is a native perennial wildflower known for its dense clusters of cream to yellow flowers. The long-lasting blooms persist from late spring into summer, providing an extended nectar source for a variety of pollinators. The flower buds are often red-tinted before opening. As the blooms age, they shift to orange or red, adding seasonal interest and making them well-suited to dried flower arrangements. Its seeds are also eaten by birds, adding to its ecological value.

Depending on climate and conditions, Sulphur-Flower Buckwheat may be evergreen to semi-evergreen, or its foliage may turn red during fall. Its deep roots and spreading growth stabilize rocky or sandy soils, making it useful for erosion control. Exceptionally hardy once established, it requires little care and thrives in challenging environments, making it an excellent choice for pollinator gardens, naturalization, and ecological restoration projects.

Harebell Quick Facts

Sulphur-Flower Buckwheat Quick Facts

Zone: 3a
Zone: 3a
Height: 0.3 m (1.0 ft)
Height: 0.2 m (0.5 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: dry, normal
Moisture: dry, normal
Growth rate: very fast
Growth rate: medium
Life span: short
Life span: short
Growth form: upright to spreading, clump-forming
Spreading: seeds - low
Suckering: none


Foliage: leathery
Fall colour: reddish bronze
Flowers: bluish-purple; bell-like
Flowers: colour varies, typically white to yellow
Bloom time: summer to early fall
Bloom time: mid spring to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, BC
Other Names: bluebell, bluebell bellflower, bluebell of scotland, common harebell, cuckoos shoe, ladys thimble, scotch bluebell, scottish bluebell, witches thimble
Other Names: sulphur buckwheat, sulphur flower, wild buckwheat