Large, robust plant. Use these fast-growing plants as tropical flourishes to turn up the heat in perennial borders. This Castor Bean's large lobed green leaves, contrasting red stems, and spiky pink seedpods add plenty of drama. It can be planted as an annual hedge or screen, or to add tropical flourishes in a perennial border. Castor Bean has been cultivated for thousands of years and the oil is still widely used today. All parts of the plant are poisonous if ingested and the foliage may affect skin allergies, so take care with children and pets.