Harebell vs Water Arum - TreeTime.ca

Harebell vs Water Arum

Calla palustris

Campanula rotundifolia

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Water Arum
Harebell

Water Arum is a native perennial wetland plant known for its showy white oval sheaths (spathe) that surround a yellow-green, cylindrical flower spike (spadix). It has large, oblong, heart-shaped leaves on stems that rise above the water from shallow, spreading rhizomes. The blossoms are followed in late summer by tiny, pear-shaped fruits that ripen to bright red, adding ornamental interest to wet habitats.

Water Arum provides food for birds and small mammals that eat its berries, and its flowers attract pollinators. It can tolerate cold climates and forms colonies in shallow water and saturated soils. It is well-suited for ecological restoration, riparian planting, naturalisation, and habitat projects in wet and shaded environments.

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.

Water Arum Quick Facts

Harebell Quick Facts

Zone: 1b
Zone: 3a
Height: 0.2 m (0.8 ft)
Height: 0.3 m (1.0 ft)
Spread: 0.2 m (0.8 ft)
Spread: 0.3 m (1.0 ft)
Light: shade, partial shade
Light: partial shade, full sun
Moisture: wet
Moisture: dry, normal
Growth rate: medium
Growth rate: very fast
Life span: short
Life span: short
Growth form: colony-forming
Spreading: rhizomes - medium, seeds - low
Suckering: none

Toxicity: toxic if ingested

Flowers: white sheath around and yellow spike
Flowers: bluish-purple; bell-like
Bloom time: spring to summer
Bloom time: summer to early fall
Berries: red, in clusters
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, PE
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: bog arum, swamp lily, wild calla, wild dragon
Other Names: bluebell, bluebell bellflower, bluebell of scotland, common harebell, cuckoos shoe, ladys thimble, scotch bluebell, scottish bluebell, witches thimble