This listing is for 5 castor oil plant (Ricinus communis) seeds The seeds contain between 40% and 60% oil that is rich in triglycerides, mainly ricinolein a known toxin to humans. According to the 2007 edition of Guinness World Records, this plant is the most poisonous in the world. There are of course other uses. Castor oil is an effective motor lubricant and bio fuel. The stalks are strong like bamboo. The leaves are good for growing silk worms. The Plant Looks Exotic! Over all, a Beautiful plant to have around your special garden. Thank you for looking!