Marsh Cinquefoil vs Water Arum - TreeTime.ca

Marsh Cinquefoil vs Water Arum

Calla palustris

Comarum palustre

CUSTOM GROW

CUSTOM GROW

Water Arum
Marsh Cinquefoil

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.

Marsh Cinquefoil is a native perennial wetland plant with striking reddish-purple, star-shaped flowers. They bloom in early to mid-summer, providing nectar for bees, flies, and other pollinators. Beyond its summer blooms, the foliage turns red in autumn, adding seasonal interest to wetland landscapes.

Common in wetlands, pond margins, and wet meadows, Marsh Cinquefoil spreads by rhizomes to form colonies or patches that contribute to shoreline stabilization. It thrives in nutrient-poor, saturated soils where many other plants struggle, making it valuable in challenging wetland conditions. With its ecological function and ornamental appeal, it is well-suited for wetland plantings, ecological restoration, and naturalized projects.

Water Arum Quick Facts

Marsh Cinquefoil Quick Facts

Zone: 1b
Zone: 1b
Height: 0.2 m (0.8 ft)
Height: 0.5 m (1.5 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: wet
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: colony-forming
Growth form: ascending to upright
Spreading: rhizomes - medium, seeds - low
Spreading: seeds - medium, rhizomes - medium

Toxicity: toxic if ingested

Flowers: white sheath around and yellow spike
Flowers: dark red/maroon, star-shaped
Bloom time: spring to summer
Bloom time: summer
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: marsh five fingers, purple cinquefoil, purple marshlocks