Castor Bean

Ranunculus

Castor Bean


The castor bean is sometimes planted to provide a quick screen or “tropical” note in the garden. It is an annual grown from seed. The whole plant is poisonous, but not the oil prepared from the seeds. The seeds are extremely toxic due to the presence of the phytotoxin ricin, which is amongst the most toxic substances known. A single castor bean seed can be fatal.