PlantFun
Plant Needs
Sunlight
Full sun exposure for optimal growth; tolerates partial shade but reduces flowering and seed production
Watering
Water thoroughly when the top 5 cm of soil is dry; avoid overwatering to prevent root rot
Temperature
Thrives in warm temperatures; cannot tolerate frost; grown as an annual in regions with cold winters
Characteristics
- Leaf: Large palmate leaves with 5–12 pointed lobes; glossy green to reddish-purple
- Flower: Dioecious clusters; male flowers yellow-green, female flowers red-pink
- Fruit: Spiny capsules containing highly toxic seeds
Care Guide
Watering
Keep soil consistently moist but not waterlogged; increase frequency in hot, dry weather
Fertilization
Apply balanced diluted fertilizer every 2 weeks. Avoid over-fertilizing to prevent excessive foliage growth at the expense of flowering
Composted banana peel tea：Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest infestationsPruning
- Remove spent flower clusters to redirect energy to growth
- Trim damaged or yellowing leaves to maintain plant health
- Cut back stems in late winter for perennial growth in tropical regions
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion causes vomiting, diarrhea, tremors, and potential organ failure
Humans: Ingestion of seeds causes severe organ damage and can be fatal; foliage contains mild irritants
Garden Uses & Culture
Culture: N/A
Usage: Castor oil production from processed seeds; ornamental foliage plant
