Floridata Plant Encyclopedia

A Floridata Plant Profile 876 Cassia roxburghii

Common Names: Ceylon senna, red cassia Family: Fabaceae (bean Family)

red cassia tree
It's a spectacular sight when the red cassia blooms at Miami's Fairchild Tropical Garden.


Red cassia is a fairly large "shower" tree with featherlike pinnately compound leaves and twigs covered with a dense carpet of fine, soft hairs. The leaves are about 1 ft (0.3 m) long and each has 15-20 pairs of oblong 2 in (5.1 cm) leaflets. Red cassia produces clusters of pink, rose or orange flowers in axillary and terminal, often branched, racemes. The flower petals are about 0.5 in (1.3 cm) long and the conspicuous yellow stamens are characteristically swollen at their middles. The fruit is a typical legume: it is cylindrical and indehiscent (does not split open by itself), 8-12 in (20.3-30.5 cm) long, less than 1 in (2.5 cm) in diameter, and bears many seeds separated by papery partitions.

red cassia
Red cassia creates a carnival of color against a clear blue tropical sky.


Red cassia, Cassia roxburghii, is native to Sri Lanka and southern India. It is uncommon in cultivation, especially in the West. But Jack was smitten by this showy individual in full bloom at Miami's Fairchild Garden and insisted that we add it to Floridata.


Light: Most of the cassias perform well in full sun or partial shade. Moisture: Most of the cassias do well in well-drained soils with regular watering. Hardiness: USDA Zones 10 - 11. We don't know about red cassia, but some of the other cassias can be grown in zones 8 and 9 where they freeze to the ground in winter, but come back in spring. Propagation: Propagate cassias by seed which should be scarified and/or soaked overnight before planting.
red cassia
The flowers of the red cassia are very similar to those of its relatives.


Use red cassia like the other "shower" trees as a specimen for its fine-textured foliage and clusters of showy flowers.


The genera Cassia and Senna include more than 500 closely related species, and plant taxonomists can't seem to make up their minds, and are forever moving species back and forth. Many of these attractive legumes are grown as ornamentals. Most have yellow flowers, like golden shower (Senna pendula). Red cassia is unusual with its pretty rose colored flowers.

Steve Christman 12/6/00; updated 4/28/04

Master Plant List

Click here to find plants in our Encyclopedia using the Master Plant List grid. Use this widget to search, sort and filter Floridata's plant database to easily locate Plant Profile pages. Use the dropdown menus to filter the grid to display items matching the selected Plant Type and Feature tags.

Plant Type Tags

tree icon
shrub icon
perennial plant icon
aquatic plant icon
cactus and succulents icon
grass icon
vine icon

Feature Tags

Attracts Birds
Attracts butterflies
Attracts Hummingbirds
Edible Plants
Cutting and Arranging
for pots and containers
drought tolerant plants
grows in wet soils
ornamental fruits
fall color
foliage plants
easy to grow plants
fast growing

Site Search

Use Google to search all of the pages on Floridata including the Plant Profile pages

Cassia species profiled on Floridata:

Cassia roxburghii

( Ceylon senna, red cassia )

More Floridata:

Copyright 2015 Floridata.com LLC