Alphabetical Plant Listing

Senna ligustrina (Privet Senna)

Privet Senna, Privet Wild Sensitive Plant, Cassia bahamensis, Cassia ligustrina, Ditremexa ligustrina, Peiranisia bahamensis


Senna ligustrina (Privet Senna) is an evergreen perennial shrub boasting a profusion of 5-petaled, bright yellow flowers from fall to spring, occasionally in summer. Borne in axillary clusters (5-10 and more), they attract sulfur butterflies and bees. The blossoms give way to thin bean pods, about 5 in. long (12 cm), that turn brown when ripe. The foliage is quite handsome with its long, pinnately compound leaves, comprised of many dark green, linear to lanceolate-shaped leaflets.The leaves make an excellent backdrop for the beautiful bright yellow flowers. Native to Southwest Florida, Privet Senna occurs naturally in hammocks and disturbed areas. It is a wonderful addition to any butterfly garden and requires minimal maintenance once established.

  • Grows up to 4-8 ft. tall (120-240 cm) and 3-6 ft. wide (90-180 cm).
  • Performs best in full sun to light shade in dry to slightly moist well-drained sand. Can grow in nutrient-poor soils but does better with some organic content. Does not tolerate flooding by salt or brackish water and has a low tolerance to salt wind.
  • No serious insect or disease problems.
  • Privet Senna is a prolific self-seeder and should be pruned to prevent an abundance of seedlings.
  • Propagate by seed.
  • The plant is highly toxic to horses if consumed. The pollen from privet cassia can cause symptoms of asthma and eczema. 
  • Native to Southwest Florida.

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Requirements

Hardiness 9 – 11
Plant Type Shrubs
Exposure Full Sun
Season of Interest Spring (Early,Mid,Late)
Fall
Winter
Height 4' – 8' (120cm – 240cm)
Spread 3' – 6' (90cm – 180cm)
Spacing 36" – 72" (90cm – 180cm)
Water Needs Low
Maintenance Low
Soil Type Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Native Plants United States, Southeast, Florida
Tolerance Drought
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Informal and Cottage

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Roberto Pascual Gomez, Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 9 – 11
Plant Type Shrubs
Exposure Full Sun
Season of Interest Spring (Early,Mid,Late)
Fall
Winter
Height 4' – 8' (120cm – 240cm)
Spread 3' – 6' (90cm – 180cm)
Spacing 36" – 72" (90cm – 180cm)
Water Needs Low
Maintenance Low
Soil Type Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Showy, Evergreen
Native Plants United States, Southeast, Florida
Tolerance Drought
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Informal and Cottage

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Senna ligustrina (Privet Senna)

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