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Nodding Rattlesnakeroot

Nabalus serpentarius

Last reviewed: June 2026

Nodding Rattlesnakeroot (Nabalus serpentarius)
Photo: (c) Sean Bloom, some rights reserved (CC BY), uploaded by Sean Bloom

Light

part shade

Water

medium

Size

24"–60" H × 12"–24" W

Bloom

Jul, Aug, Sep

Native to

AL, CT, DE, FL and 15 more states

Pollinators

bees, butterflies, moths

Nodding rattlesnakeroot is a tall native wildflower that produces delicate drooping clusters of small white or pale yellow flowers from summer into fall. This woodland perennial thrives in partial shade and forms clumps of leafy stems that can reach up to 5 feet tall.

In an HOA neighborhood

Nodding Rattlesnakeroot 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 tall height appears wild and unmanicured
  • Can look weedy when dormant
  • Informal woodland appearance doesn't fit typical HOA aesthetics

Wildlife value

The flowers attract bees, butterflies, and moths during the long blooming period from July through September. Seeds provide food for birds in fall and winter.

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