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Bitter Milkwort

Polygala polygama

Last reviewed: August 2026

Bitter Milkwort (Polygala polygama)
Photo: (c) Laura Clark, some rights reserved (CC BY), uploaded by Laura Clark

Toxicity unknown

Bitter Milkwort (Polygala polygama) 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 sun

Water

low

Size

4"–12" H × 2"–6" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, CT, DE and 32 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 445 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

PiedmontWestern Corn Belt PlainsNorthern Lakes and ForestsNorth Central Hardwood ForestsDriftless AreaSoutheastern Wisconsin Till PlainsCentral Corn Belt PlainsEastern Corn Belt PlainsSouthern Michigan/Northern Indiana Drift PlainsHuron/Erie Lake PlainsNortheastern HighlandsNortheastern Coastal ZoneMiddle Atlantic Coastal PlainNorthern PiedmontSoutheastern PlainsBlue RidgeRidge and ValleySouthern Coastal PlainAcadian Plains and HillsEastern Great Lakes LowlandsAtlantic Coastal Pine Barrens

Bitter milkwort is a small native perennial that forms low, compact clumps with delicate pink to purple flowers from June through August. This drought-tolerant plant thrives in partial sun and requires minimal watering once established. Its small stature makes it suitable for rock gardens, borders, or as groundcover in naturalized areas.

In an HOA neighborhood

Bitter Milkwort 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 and can appear sparse or weedy
  • May be mistaken for unwanted wildflowers
  • Unclear winter appearance creates uncertainty

Wildlife value

The small flowers attract native bees and butterflies during the summer blooming period. Its compact size provides habitat for beneficial insects while supporting local pollinator populations.

Common questions

How much sun does Bitter Milkwort need?
Bitter Milkwort grows best in part sun conditions.
When does Bitter Milkwort bloom?
Bitter Milkwort blooms in June, July, and August.
Where is Bitter Milkwort native?
Bitter Milkwort (Polygala polygama) is native to AL, AR, CT, DE and 32 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does Bitter Milkwort attract?
Bitter Milkwort draws bees and butterflies.
Is Bitter Milkwort HOA-friendly?
Bitter Milkwort 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 the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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