Cassia alata, commonly known as candle bush, is a fast-growing tropical shrub valued for its upright growth and distinctive flowering spikes. It develops large, pinnate leaves and produces tall, candle-like clusters of yellow flowers during the warm season. This plant thrives in tropical and subtropical climates and performs best in full sun with well-drained soils. It is commonly grown in garden borders, hedges, and landscape settings. Seeds establish under warm conditions and may benefit from soaking or light scarification to improve germination.
Features
- Fast-growing shrub with upright, branching growth
- Produces tall, candle-like yellow flower spikes
- Adapted to warm tropical and subtropical climates
- Suitable for garden borders and landscape planting
- Establishes from seeds with warm conditions
Specifications
- Scientific name: Senna alata
- Common name (US): Candle Bush
- Seed type / variety: Standard variety
- Growth habit: Upright, bushy perennial shrub
- USDA zones: 9-11
- Planting season: Spring to early summer
- Growing season: Summer to fall
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Sowing Season:
- Spring: March to May
- Early Summer: June
- Germination time and conditions: 2-4 weeks at 20-30°C; soaking/scarification may improve germination
- Sunlight requirements: Full sun
- Soil requirements: Well-drained sandy or loamy soil
- Watering needs: Moderate, consistent moisture during establishment
- Mature plant size: 2-4 meters height, 1.5-3 meters spread
- Plant spacing: 1.5-2.5 meters between plants
