This is a true old fashioned plant and very dramatic-looking. This stand of castor is growing behind my Vegetable Garden. It comes up from seed every spring. I haven't purposely planted it since the first year I grew it. The spiny red balls become a cluster of seeds. They drop to the ground and there you have it. Next spring a whole new stand of castor. All parts of the castor plant are extremely poisonous (which is interesting since castor oil is made from castor). As a vole deterrent, I have recently begun to plant seeds around the little plants I plant in the Rose Garden. They eat the roots as they try to get to the roots of my good plants - and they die (at least that's what I hope is happening). I think it is helping save some of my plants, but I need more time to see if my plan is really working. I know that vole and mole repellent is made from castor, so I think I'm on to something. And obviously, I have a lot of castor, so I'm set as far as repellent goes!