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Douglass' Bittercress

Cardamine douglassii

Last reviewed: September 2026

Douglass' Bittercress (Cardamine douglassii)
Photo: Wikimedia Commons (Public domain)

Toxicity unknown

Douglass' Bittercress (Cardamine douglassii) 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.

The USDA PLANTS Database (opens in new tab) does not flag Douglass' Bittercress as toxic to livestock.

Light

part shade

Water

medium

Size

6"–20" H × 4"–12" W

Bloom

Apr, May

Native to

AL, CT, IA, IL and 17 more states

Pollinators

bees, beetles

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 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Douglass' Bittercress.

Cardamine douglassii is a delicate spring wildflower that produces small white or pale pink flowers in April and May. This low-growing native perennial forms compact clumps with attractive compound leaves and thrives in partially shaded garden areas with average moisture.

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In an HOA neighborhood

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

Works well in: backyard only.

  • Goes completely dormant by mid-summer leaving bare spots
  • Can appear weedy or wild to unfamiliar observers
  • May spread unpredictably through self-seeding

Wildlife value

The early spring blooms provide nectar for native bees and beetles when few other flowers are available. This plant serves as a host for several butterfly species including the West Virginia White.

Common questions

How much sun does Douglass' Bittercress need?
Douglass' Bittercress grows best in part shade conditions.
When does Douglass' Bittercress bloom?
Douglass' Bittercress blooms in April and May.
Where is Douglass' Bittercress native?
Douglass' Bittercress (Cardamine douglassii) is native to AL, CT, IA, IL and 17 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Douglass' Bittercress toxic to livestock?
The USDA PLANTS Database does not flag Douglass' Bittercress as toxic to livestock.
What pollinators does Douglass' Bittercress attract?
Douglass' Bittercress draws bees and beetles.
Is Douglass' Bittercress HOA-friendly?
Douglass' Bittercress takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. 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 Douglass' Bittercress? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.