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White Milkwort

Polygala alba

Last reviewed: September 2026

White Milkwort (Polygala alba)
Photo: (c) Sam Kieschnick, some rights reserved (CC BY)

Toxicity unknown

White Milkwort (Polygala alba) 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

full sun

Water

low

Size

4"–12" H × 3"–8" W

Bloom

May, Jun, Jul, Aug

Native to

AZ, CO, IA, ID and 10 more states

Pollinators

bees, butterflies

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.

Find rebates in your area

White milkwort is a compact native perennial that forms small clumps of slender stems topped with clusters of tiny white flowers. It blooms continuously from May through August, creating a delicate, airy appearance in the garden. This drought-tolerant plant thrives in full sun and requires minimal water once established.

In an HOA neighborhood

White Milkwort is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

The long blooming period provides nectar for bees and butterflies throughout most of the growing season. Its small size makes it particularly valuable for supporting smaller native pollinators.

Common questions

How much sun does White Milkwort need?
White Milkwort grows best in full sun conditions.
When does White Milkwort bloom?
White Milkwort blooms in May, June, July, and August.
Where is White Milkwort native?
White Milkwort (Polygala alba) is native to AZ, CO, IA, ID and 10 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does White Milkwort attract?
White Milkwort draws bees and butterflies.
Is White Milkwort HOA-friendly?
White Milkwort is generally an HOA-friendly choice in the right placement, with low maintenance.

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 White Milkwort? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz