10+
Castor bean seeds produce fast-growing, warm-season plants with a tall, upright growth habit and large, dramatic leaves. These plants develop thick stems and broad foliage, making them suitable for ornamental and landscape use. Castor bean plants thrive in warm climates with a long, frost-free growing season and perform best in full sunlight with well-drained, fertile soil. Suitable for garden beds, borders, and background planting, they establish quickly and create bold visual impact.
Features
- Fast-growing plant with tall, upright growth
- Produces large, striking foliage
- Suitable for ornamental and landscape planting
- Adaptable to well-drained, fertile soil conditions
- Performs best in full sun
Specifications
- Scientific Name: Ricinus communis
- Common Name (US): Castor Bean Plant / Castor Oil Plant
- Seed Type / Variety: Ornamental foliage variety
- Growth Habit: Upright, fast-growing annual (perennial in warm climates)
- USDA Zones: 9–11 (perennial); grown as annual in cooler regions
- Planting Season: Spring (after last frost)
- Growing Season: Late spring to fall
- Sowing Season: February to April (indoor sowing); March to May (direct sowing in warm regions)
- Germination Time and Conditions: 10–20 days at 20–30°C with moist soil
- Sunlight Requirements: Full sun
- Soil Requirements: Well-drained, fertile soil
- Watering Needs: Moderate, consistent moisture
- Mature Plant Size: 1.5–3 meters height; 1–2 meters spread
- Plant Spacing: 60–100 cm between plants
