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Rattlebox

Ludwigia alternifolia

Last reviewed: June 2026

Ludwigia alternifolia is a native wetland forb blooming yellow flowers from June through August across eastern and central United States. This seedbox thrives in sunny, moist conditions and attracts bees and beetles.

Rattlebox (Ludwigia alternifolia)
Photo: Wikimedia Commons (Public domain)

Light

full sun

Water

medium

Size

12"–36" H × 6"–24" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, CT, DE and 29 more states

Pollinators

bees, beetles

Rattlebox is a native perennial wildflower that produces small yellow flowers throughout summer. It grows in an upright form with alternate leaves and thrives in sunny locations with moderate moisture.

Growing Rattlebox

Grow Rattlebox in full sun and medium water. Mature plants reach 12 to 36 inches tall and spread 6 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Rattlebox 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.

  • Common name 'Rattlebox' sounds undesirable
  • Wildflower appearance may seem weedy to neighbors
  • Dies back completely in winter leaving bare patches

Wildlife value

The summer blooms attract native bees and beetles for pollination. The plant provides habitat and food sources for various beneficial insects.

Common questions

When does Ludwigia alternifolia bloom?
Ludwigia alternifolia blooms from June through August, producing small yellow flowers in the leaf axils.
What pollinators visit Ludwigia alternifolia?
Bees and beetles are the primary pollinators of Ludwigia alternifolia, attracted to its small yellow flowers.
Where is Ludwigia alternifolia native?
Ludwigia alternifolia is native to most eastern and central states from Maine to Florida and west to Texas, Kansas, and Iowa.
What growing conditions does Ludwigia alternifolia prefer?
This plant thrives in full sun to partial sun with medium to high moisture levels, typically found in wetlands, pond margins, and ditches.
Is Rattlebox HOA-friendly?
Rattlebox 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 USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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