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Senna hebecarpa

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Plant types and subtypes: Perennials

Light Requirements: sun, part-sun

Water Use: medium

Soil Moisture: moist

Soil Description: neutral, rich, average, loam, sand

Height: 3'-6'

Bloom Time: July, August

Bloom Color: yellow

Leaf Color: green

Hardiness Zone: 5, 6, 7

Additional Tags: attracts butterflies, cottage garden plant, naturalizing, ornamental foliage, poisonous

Flowers of Senna hebecarpa (hairy senna)
  • Flowers of Senna hebecarpa (hairy senna)
  • Flowers of Senna hebecarpa (hairy senna)
  • Flowers of Senna hebecarpa (hairy senna)
  • Flowers of Senna hebecarpa (hairy senna)

Pricing & Availability

Description

Senna hebecarpa

Also known as:

American senna

,

wild senna

Scientific Synonyms:

Cassia hebecarpa

Description

Senna hebecarpa is an eye catching species for the garden. This large plant produces clusters of golden, yellow flowers composed of 5 petals with contrasting and conspicuous brown anthers. The leaves are typical of most other members of the Pea family.

Cultivation

Enjoying full sun to light shade, American senna readily colonizes in average soil. It may be pruned after flowering to maintain dense foliage. Blooms in July and August. Zones 4-8

Propagation

Easy to propagate from seeds. These will benefit from an overnight soak before sowing. It can also be propagated from cuttings.

Additional Notes

Most species of Senna where previously placed in the Cassia genus. The plant is poisonous and potentially dangerous. Sensitivity will vary, depending on a person's age and susceptibility. It attracts butterflies and is a larval host for the 'cloudless sulphur'.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
CT, DC, DE, GA, IL, IN, KY, MA, MD, ME, MI, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV

USDA Endangered Status:

  • Endangered: MA, NH
  • Historical: RI
  • Special Concern: CT
  • Threatened: VT

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Rosidae
Order Fabales
Family Fabaceae Pea family
Genus Senna senna
Species Senna hebecarpa American senna