When does American milkmaids bloom?

Cardamine californica typically flowers from March through May, with small white to pale pink blossoms appearing on woodland slopes before the plant goes dormant for summer.

What growing conditions does American milkmaids need?

This forb does best in part shade to shade with medium, consistent moisture, similar to the filtered light and moist duff found under oak and mixed evergreen woodlands.

What pollinates American milkmaids?

Bees and flies are the main visitors to the small white flowers of Cardamine californica, foraging on it during its spring bloom period.

Is American milkmaids evergreen?

No. Cardamine californica is deciduous and dies back to its rootstock after flowering, going dormant through the dry summer months.

Can American milkmaids handle dry soil?

It tolerates medium to somewhat low moisture once established but grows best with regular moisture during its late winter and spring growth period.

Is American Milkmaids HOA-friendly?

American Milkmaids takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

American Milkmaids

Name: Pollinator Patch
Author: Pollinator Patch

Cardamine californica

Last reviewed: August 2026

Cardamine californica, also called American milkmaids, produces small white to pale pink flowers from March through May in shaded woodland settings along the Pacific coast. It dies back after blooming and prefers part shade with moderate moisture.

Toxicity unknown

American Milkmaids (Cardamine californica) 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

medium

Size

6"–12" H × 4"–8" W

Bloom

Mar, Apr, May

Native to

CA, OR, WA

Pollinators

bees, flies

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Browse plants for this ecoregion

Coast Range Marine West Coast Forest Northwestern Forested Mountains Sierra Nevada Central California Foothills and Coastal Mountains Central California Valley Southern California Mountains Southern California/Northern Baja Coast

Cardamine californica is a delicate spring wildflower that produces small white or pale pink flowers from March through May. This low-growing perennial forms compact clumps with attractive foliage and thrives in partially shaded areas with consistent moisture.

Growing American Milkmaids

Grow American Milkmaids in part shade and medium water. Mature plants reach 6 to 12 inches tall and spread 4 to 8 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

American Milkmaids 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.

Very small stature may appear weedy
Goes dormant after blooming leaving bare spots
Wildflower appearance not typical landscaping

Wildlife value

The early spring blooms provide important nectar for bees and flies when few other flowers are available. This makes it valuable for supporting pollinators during the critical early season period.

Common questions

When does American milkmaids bloom?: Cardamine californica typically flowers from March through May, with small white to pale pink blossoms appearing on woodland slopes before the plant goes dormant for summer.
What growing conditions does American milkmaids need?: This forb does best in part shade to shade with medium, consistent moisture, similar to the filtered light and moist duff found under oak and mixed evergreen woodlands.
What pollinates American milkmaids?: Bees and flies are the main visitors to the small white flowers of Cardamine californica, foraging on it during its spring bloom period.
Is American milkmaids evergreen?: No. Cardamine californica is deciduous and dies back to its rootstock after flowering, going dormant through the dry summer months.
Can American milkmaids handle dry soil?: It tolerates medium to somewhat low moisture once established but grows best with regular moisture during its late winter and spring growth period.
Is American Milkmaids HOA-friendly?: American Milkmaids 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 vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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