Eastern Redbud vs Water Arum - TreeTime.ca

Eastern Redbud vs Water Arum

Calla palustris

Cercis canadensis

CUSTOM GROW

Water Arum
Eastern Redbud

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.

The Eastern Redbud is known for the pea-like pink buds that emerge in clusters on the bark, embellishing the tree in stunning flowers. They have a longer bloom time, sometimes for two to three weeks before the heart-shaped leaves emerge for the summer. Inedible pods emerge that turn brown in the summer, this tree is a part of the bean family.

Native to the Eastern North America. The Eastern Redbud can tolerate acidic and alkaline soil. Plant this as a beautiful understory species or shaded residential yard or garden. The bright pop of color will make an attractive ornamental tree.

Water Arum Quick Facts

Eastern Redbud Quick Facts

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Zone: 1b
Zone: 4a
Height: 0.2 m (0.8 ft)
Height: 8 m (25 ft)
Spread: 0.2 m (0.8 ft)
Spread: 9 m (30 ft)
Light: shade, partial shade
Light: partial shade, full sun
Moisture: wet
Moisture: dry, normal
Growth rate: medium
Growth rate: medium
Life span: short
Life span: long
Growth form: colony-forming
Spreading: rhizomes - medium, seeds - low
Suckering: high

Toxicity: toxic if ingested

Flowers: white sheath around and yellow spike
Flowers: rose-purple, pea-like
Bloom time: spring to summer
Berries: red, in clusters
Seeds: pod-like
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, PE
Other Names: bog arum, swamp lily, wild calla, wild dragon
Other Names: judas tree