Sulphur Senna

(Senna sulfurea)

Sulphur Senna (Senna sulfurea)

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Climate Requirements

Precipitation 31" - 85"
High Temp. 85°F - 106°F
Low Temp. 44°F - 68°F

Summary

Senna sulfurea, commonly known as Sulphur Senna, is a perennial shrub native to the Indian subcontinent. It can grow up to 2-3 meters tall and equally wide, with a rounded form. Sulphur Senna is recognized for its bright yellow, butterfly-attracting flowers that bloom throughout the year, particularly in warmer climates. The plant’s foliage is also noteworthy, with pinnate leaves that are green to gray-green in color.

Sulphur Senna is valued for its drought tolerance and continuous flowering, making it a popular choice for tropical and subtropical landscapes. It is often used for hedging, ornamental displays, and as a specimen plant. In cultivation, it thrives in full sun and requires well-drained soils. While it is adaptable to a range of soil types, it performs best in soils that are moderately fertile. Regular pruning can help maintain its shape and promote denser foliage. Sulphur Senna is generally pest-resistant but can be susceptible to root rot if overwatered or planted in poorly drained soils. It should be monitored to ensure it does not become a problem.CC BY-SA 4.0

Plant Description

  • Plant Type: Shrub, Tree
  • Height: 2-3 feet
  • Width: 2-3 feet
  • Growth Rate: Rapid
  • Flower Color: Yellow
  • Flowering Season: Summer, Fall
  • Leaf Retention: Deciduous, Semi-deciduous

Growth Requirements

  • Sun: Full Sun
  • Drainage: Fast

Common Uses

Bird Garden, Butterfly Garden, Drought Tolerant, Low Maintenance, Showy Flowers

Other Names

Common Names: Sulfur Senna, Sulfur Pea

Scientific Names: Senna sulfurea, Cassia arborescens, Cassia enneaphylla, Cassia enneaphylla, Cassia glauca, Cassia petropolitana, Cassia sieberi, Cassia sulfurea, Cassia sulfurea

GBIF Accepted Name: Senna sulfurea