Indian Subcontinent and Southeast Asia
Cassia Fistula is commonly known as Golden Shower / Amaltash. The golden shower tree is a medium-sized tree, growing to 10-20 m tall with fast growth. The leaves are deciduous, 15-60 cm long, and pinnate with three to eight pairs of leaflets, each leaflet 7-21 cm long and 4-9 cm broad. The flowers are five yellow petals of equal size and shape. The fruit is a legume, 30-60 cm long and 1.5-2.5 cm broad, with a pungent odor and containing several seeds.
Cassia Fistula tree requires full sun to flower. They are tolerant of most soils types. Water regularly until the roots are fully established.
It is used for borders, ornamental landscaping and as avenue plants.
Cassia Fistula is used as an ornamental to beautify streets, avenues, parks, and gardens.
Plants with thin leaves need daily watering and ones with thick leaves need watering 3-4 times a week. This will also depend on the season. Generally during the blooming period, plants love a lot of water. Try keeping the soil moist. During winters it is better to cut back on watering.
Keep the plants in a well drained soil with a drainage hole at the bottom. This will help to avoid over watering. Take care as to not leave stagnant water on top of the soil. Fertilise the plant once in 2-3 weeks during its blooming period. Do not fertilise it in winters.