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Wild Calla

Calla palustris

Last reviewed: September 2026

Wild calla (Calla palustris) is a wetland forb that blooms June through August in bogs, swamp edges, and shaded wet ground across the northeastern and upper midwestern United States.

Wild Calla (Calla palustris)
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Toxicity unknown

Wild Calla (Calla palustris) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

high

Size

6"–24" H × 12"–24" W

Bloom

Jun, Jul, Aug

Native to

CT, IL, IN, MA and 14 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

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Wild calla is a low-growing native wetland perennial with heart-shaped leaves and distinctive white spathe flowers that bloom through summer. This plant thrives in consistently moist to wet soils and partial shade, making it ideal for bog gardens, pond edges, or areas with poor drainage.

Growing Wild Calla

Grow Wild Calla in part shade and high water. Mature plants reach 6 to 24 inches tall and spread 12 to 24 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Wild Calla takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Requires very wet conditions that may create muddy areas
  • Wetland appearance conflicts with typical lawn-based landscaping
  • May spread aggressively in optimal conditions

Wildlife value

The flowers attract various flies and beetles that serve as pollinators, while the berries provide food for waterfowl and other wetland birds.

Common questions

What kind of site does wild calla need to thrive?
Wild calla grows in consistently saturated to shallowly flooded soil, such as bog margins, swamp edges, and pond shorelines, and it does best with part shade rather than full sun.
When does wild calla bloom?
It flowers from June through August, producing a white spathe around a short spadix typical of the arum family.
Can wild calla grow in a home garden?
It can be grown in a garden if the site stays wet or boggy year round, such as a pond edge or rain garden low spot, since it will not tolerate dry soil for long.
Does wild calla attract specific pollinators?
No specific pollinator relationships are well documented for this species in available records.
Is Wild Calla HOA-friendly?
Wild Calla takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Wild Calla? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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