Phantom Hydrangea vs Water Arum - TreeTime.ca

Phantom Hydrangea vs Water Arum

Hydrangea paniculata Phantom

Calla palustris

CUSTOM GROW

CUSTOM GROW

Phantom Hydrangea
Water Arum

Phantom Hydrangea is a striking deciduous shrub with impressive blooms. It is multi-stemmed and produces pale green flowers that fade to white and soft pink as they mature. These flower clusters can reach up to 15” (40cm) long and while other shrubs will droop from the flowers' weight, Phantom Hydrangea has sturdy stems that support them.

This adaptable shrub will make a beautiful addition to your yard as a flowering hedge or as an ornamental plant on its own. Try pruning the flowers after they are spent to get even larger flower heads.

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.

Phantom Hydrangea Quick Facts

Water Arum Quick Facts

Zone: 3b
Zone: 1b
Height: 1.8 m (6 ft)
Height: 0.2 m (0.8 ft)
Spread: 1.5 m (5 ft)
Spread: 0.2 m (0.8 ft)
Light: partial shade, full sun
Light: shade, partial shade
Moisture: normal
Moisture: wet
Growth rate: medium
Growth rate: medium
Life span: medium
Life span: short
Growth form: colony-forming
Spreading: rhizomes - medium, seeds - low
Suckering: medium


Toxicity: toxic if ingested
Flowers: large white flower clusters
Flowers: white sheath around and yellow spike
Bloom time: spring to 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
Other Names: bog arum, swamp lily, wild calla, wild dragon