water arum
Calla palustris
USDA zones2 to 6
SunHandles partial sun to full shade
WaterHandles moderate to wet soil
Size6 to 12 inches tall6 to 12 inches wide
- Growth rate
- Slow
- Habit
- Herb
- Bloom season
- Spring, summer, autumn
- Bloom color
- White spathe encircles yellow-green spadix
- Foliage color
- Green
- Soil types
- Sand, loam, clay
- Soil pH
- Acid, neutral
Garden uses
Notes
Water arum (Calla palustris) is a perennial for borders, rain gardens, and low maintenance spots. It is hardy to USDA zone 2, or down to -50°F (-46°C). This plant likes part sun to full shade and average to wet, sandy, loamy, or clay soil. A broad white spathe wraps around a spadix covered with tiny yellow flowers. Red berries follow the blooms. Add a light mulch in extremely cold, snowless winters.
Pairs well with Yellow marsh marigold, Crested wood fern, and Beech fern.
Native range
Temperate regions.