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Wild Senna Wikimedia Commons
Fabaceae

Wild Senna

Senna hebecarpa

Quiet generosity and woven kinship.

Family
Fabaceae
Genus
Senna
Native to
eastern North America
Bloom season
Mid Summer
Type
herbaceous perennial
Height
1.2–1.8 m
Sunlight
full sun to part shade
Soil
moist, fertile
Water
medium
Hardiness
4–8
Lifespan
long-lived perennial

Did you know

  • Its yellow flowers feed many native bees, but they offer pollen only — no nectar reward.
  • Specialist 'extra-floral nectaries' on the leaf stalks supply ants, which in turn defend the plant from caterpillars.
  • Hosts the cloudless sulphur butterfly — its caterpillars are bright yellow to match the flowers.
  • The seedpods turn black and persist through winter, rattling like maracas in the cold wind.
  • Closely related Senna species supply commercial senna laxative, though wild senna is much less potent.

Color meanings

Yellow

open-handed sunlight

Uses

  • native borders
  • pollinator gardens
  • rain gardens
  • butterfly host plant