Golden Shower Tree (Cassia fistula)
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About this plant
Cassia fistula, known as the Golden Shower Tree, is a tropical tree famous for its beautiful hanging clusters of bright yellow flowers. It is often grown as an ornamental tree in gardens and parks for its striking floral display. The tree also has cultural significance in some countries and is used in traditional medicine.
Taxonomy
Higher classification: Fabales
Origin & Distribution
- Native region
- India, Sri Lanka, Myanmar, Thailand
- Distribution
- Native to South Asia and Southeast Asia; widely cultivated in tropical and subtropical regions worldwide.
Care
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, West-facing
- USDA hardiness zones
- 9–11
- Soil pH
- 6.0–7.5 (neutral to slightly acidic)
- Soil type
- well-draining loam or sandy soil
Watering. Water regularly during the growing season, especially for young trees. Once established, it tolerates some drought but benefits from occasional deep watering.
Fertilizing. Apply a balanced fertilizer in early spring to support growth and flowering. Fertilize once or twice a year, avoiding excessive nitrogen which can reduce flowering.
Cassia fistula is a hardy tree that prefers full sun and well-drained soil. It tolerates drought once established but needs regular watering when young. It requires moderate maintenance, mainly pruning to maintain shape and remove dead branches.
Propagation
- Propagation methods
- Seeds, Cuttings
Ornamental features
- Flowering
- Yes
- Flowering period
- spring–summer
Bright yellow cascading flower clusters, attractive green foliage, and a graceful tree form.
Toxicity & Safety
Generally considered non-toxic but avoid ingestion of seeds or pods as they may cause mild stomach upset.
Allergy information
Cassia fistula can produce pollen that may cause mild allergic reactions in sensitive individuals, such as sneezing or itchy eyes. People with pollen allergies should avoid close contact during its flowering period to reduce exposure.
Common problems
Common problems include leaf spot diseases and occasional pest attacks like aphids. Overwatering can lead to root rot, and poor drainage should be avoided.
Uses
Primarily grown as an ornamental tree for its striking yellow flowers. Also used in traditional medicine and as shade in tropical gardens.
Notes
Prune after flowering to maintain shape and remove dead or crossing branches. Young trees benefit from protection against strong winds. Repotting is not applicable as it is a large tree typically grown outdoors.