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Castor bean
Ricinus communis
In the United States:
Naturalized
· also called castor oil plant
Flowers are primarily wind-pollinated and produce little nectar or pollen; any pollen collected is toxic to honey bees and reduces survival. Plants bloom over summer into fall in warm climates and grow rapidly as tall annuals or tender perennials. Requires full sun and rich, well-drained soil.
| Nectar | low |
|---|---|
| Pollen | low |
| Bloom (US) | June–October |
| Type | Perennial |
| Sun | full |
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