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Clammyweed

Polanisia dodecandra

Last reviewed: June 2026

Clammyweed (Polanisia dodecandra)
Photo: no rights reserved

Light

full sun

Water

low

Size

8"–24" H × 6"–12" W

Bloom

Jun, Jul, Aug

Native to

MT

Pollinators

bees, beetles

Polanisia dodecandra is a compact annual wildflower that produces delicate white to pale pink flowers from June through August. This hardy native thrives in full sun with minimal water requirements. The plant maintains a tidy, upright growth habit throughout the growing season.

In an HOA neighborhood

Clammyweed 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.

  • Annual nature creates gaps in landscaping each year
  • Can appear weedy or informal to conventional gardeners
  • May self-seed unpredictably

Wildlife value

This native forb provides valuable nectar for bees and serves as a host for various beetles during its extended summer blooming period. Its flowers are particularly attractive to native solitary bees and small pollinators.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Does Clammyweed fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.