Caster bean is what my Gma always called gopher purge, but there was a big discussion on another thread and there is a different plant actually that is the "gopher purge" The caster bean is beautiful, but the seed is quite deadly. My gma had them all over the place (caster bean) we had goats at the time they never touched them. Her chickens didn't free range so I don't know about them.Is that what they are??? I had no idea. I'll have to google & find some photos...