Harebell vs Nuttalls Sunflower - TreeTime.ca

Harebell vs Nuttalls Sunflower

Campanula rotundifolia

Helianthus nuttallii

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Harebell
Nuttalls Sunflower

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.

Nuttall’s Sunflower is a native perennial wildflower known for its bright, golden-yellow blooms. Flowering from mid to late summer, it offers a late-season nectar source for various bees, butterflies, and other pollinators, while the seeds provide a fall food source for birds. The upright growth habit adds structural height and visual variety to your landscape.

Nuttall’s Sunflower can be found growing in moist to wet meadows, prairies, and open spaces. It can spread quickly via underground rhizomes, making it ideal for large-scale plantings. It is well-suited for naturalization, soil stabilization, riparian zones, and wetland restoration projects. If planting in smaller urban yards or gardens, extra care and maintenance will be required to limit its spread.

Harebell Quick Facts

Nuttalls Sunflower Quick Facts

Zone: 3a
Zone: 2b
Height: 0.3 m (1.0 ft)
Height: 1.2 m (4 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: very fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, colony forming
Spreading: rhizomes - medium, seeds - low
Suckering: none


Flowers: bluish-purple; bell-like
Flowers: golden yellow, daisy-like
Bloom time: summer to early fall
Bloom time: late summer to early fall
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, SK, MB
Other Names: bluebell, bluebell bellflower, bluebell of scotland, common harebell, cuckoos shoe, ladys thimble, scotch bluebell, scottish bluebell, witches thimble
Other Names: common tall sunflower