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Senna siamea
Senna siamea
Senna siamea
Senna siamea

Senna siamea

TAXONOMY

FamilyFabaceae
GenusSenna
Zone10

ABOUT

Senna siamea, commonly known as Siamese cassia, is a tree native to Southeast Asia. It belongs to the Fabaceae family and is known for its bright yellow flowers and compound leaves. This tree thrives in seasonally dry tropical climates and can grow up to 18 meters tall. It has a dormancy period during the dry season.

ALSO KNOWN AS

Chamaefistula Gigantea
Cassia arborea
Cassia florida
Cassia gigantea
Cassia siamea
Cassia siamea var. puberula
Cassia sumatrana
Sciacassia siamea
Senna sumatrana
Siamese cassia

OVERVIEW

WaterDry
SoilLoamy
LightDirect Bright (8 Hours)
Temperature25° C
Humidity60%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Senna siamea requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and moderate humidity levels. Water the plant when the soil is almost completely dry, but avoid waterlogging. This tree is best suited for outdoor growth in tropical climates.
Soil
Senna siamea prefers well-draining loam soil. Ensure the soil has good drainage to prevent waterlogging, which can harm the plant. A soil mix that retains some moisture but dries out between waterings is ideal.
Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant during the growing season to support its growth. Avoid over-fertilizing, as this can lead to nutrient imbalances.
Repotting
Repot young Senna siamea trees every 2-3 years to provide fresh soil and more space for root growth. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Repotting is best done during the early growing season.
Propagation
Senna siamea can be propagated from seeds or cuttings. Seeds should be soaked in water for 24 hours before planting to improve germination. Cuttings should be taken from healthy, mature trees and planted in a well-draining soil mix.
Pruning
Prune Senna siamea during the dormant season to remove dead or diseased branches and to shape the tree. Regular pruning helps maintain the tree's structure and encourages healthy growth.
Toxicity
Senna siamea is toxic to pets and humans if ingested. The seeds and leaves contain compounds that can cause gastrointestinal distress and other symptoms. Keep the plant out of reach of children and pets.
Additional
Senna siamea is often used in agroforestry systems for its nitrogen-fixing properties, which improve soil fertility. It is also valued for its medicinal properties and is used in traditional medicine in some cultures.
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