Castor Bean Seeds (Ricinus communis) – Castor Oil Plant/Palma Christi, Fast-Growing Ornamental, Dramatic Tropical Foliage & Striking Seed Pods, Statement Plant for Borders & Privacy Screens

Minimum: 10+ Seeds

Castor Bean — The Dramatic Tropical Statement Plant That Grows Eight Feet in One Summer

Castor bean is the plant that makes people stop walking and stare. The enormous palmate leaves... hand-shaped, up to three feet across, deep green or bronze-red depending on variety... create an instant jungle aesthetic. The striking seed pods emerge in summer, round and spiny, bright red or pink like tropical fruit made of fire. The plant grows with shocking speed, reaching 7 to 10 feet in a single warm season, turning a bare fence into a privacy screen or transforming a corner into an exotic focal point. It tolerates heat that other plants surrender to, never wilts, and produces drama without asking for much. Important note: seeds contain ricin, a serious toxin... remove seed pods before they mature and keep plants away from children and pets.

Who Grows Castor Bean?

Gardeners who want dramatic height and structure fast. Florists seeking stage-worthy materials for arrangements and events. Designers creating tropical or exotic borders from scratch. Anyone needing a living privacy screen that fills space in weeks instead of years. And gardeners who appreciate bold gestures and aren't intimidated by powerful plants that demand respect.

What This Plant Actually Is

Ricinus communis, a tender perennial shrub or small tree native to tropical Africa. Plants reach 7 to 10 feet in a single growing season in warm climates, with enormous palmately lobed leaves (5-11 pointed lobes), glossy texture, 1-3 feet across, ranging from green to bronze to burgundy depending on variety. Small yellowish-green flowers in tall spikes appear in summer, followed by the distinctive round, spiny seed capsules in shades of bright red, pink, or burgundy... each capsule about the size of a golf ball and more striking than any ornamental berry. Perennial in zones 9-11; grown as an annual everywhere else. Seed capsules contain three seeds; seeds contain ricin, a potent toxin requiring careful handling.

Growing Castor Bean

• Starting Seed: Sow indoors 6 weeks before last frost or direct sow after soil reaches 75-85°F. Soak seeds 24 hours before planting.
• Sowing: Plant ¼ inch deep. Germination takes 7-14 days in warm soil.
• Spacing: 3-6 feet apart depending on final size desired. Wider spacing = more branching and pod production.
• Sunlight: Full sun. More sun produces stronger color in foliage and pods.
• Soil: Tolerates many soil types but prefers fertile, well-drained soil. Will thrive in poor soils.
• Water: Moderate water. Tolerates drought once established but thrives with regular moisture.
• Temperature: Loves heat. No frost tolerance. Dies at first freeze in cold climates.
• Pinching: Pinch the main growing tip around 2 feet tall to encourage multiple stems and more pods.
• Pod Production: Requires 140-180 days of warm temperatures for good seed pod production.
• Seed Removal: Remove seed capsules before they mature and split to prevent self-seeding and exposure to toxic seeds.

Before You Close This Page

Grows 7-10 feet in a single summer. Enormous hand-shaped leaves in green or bronze-red. Striking red, pink, or burgundy spiny seed pods like tropical fruit. Fast enough to create privacy screens from bare fences. Tolerates heat and poor conditions. Perfect for tropical or exotic gardens. Seeds are toxic... remove pods before maturity and keep away from children and pets. Annual in cold zones, tender perennial in zones 9-11. The dramatic focal point that fills space in weeks.