Thank you peaseblossom! I think my mom says that the vine is like 3-4 years old. No she cannot get it to seed. She said that in other provinces it would seed and needs insects to polinate it. She sprays in her nursery so that might be one of the causes, killing beneficial insects too. Some growers are successful in propagating this plant through cuttings.

I realize this is an old post. Where are you located that you grow this? Do you still have any available?

Wow. I wonder what in heck pollinated it? I mean, being inside the greenhouse, there's not much chance for "creatures" to get in there, although, during the very first stretch of 80 degree temps we had in March, I was working in there with the doors open, and a bumblebee and what looked like a red wasp did get in and were flying all over the place. The bee kept dive bombing me, like he was saying, "Show me the way OUT you miserable human!" Every once in a great while a stray butterfly will also get in...I suppose that one of these could have pollinated it, the vine was blooming profusely then. This was a raceme of flowers that was hanging down very low, brushing the ground. I fact, I only found the pod when I was on my hands and knees scooping leaf debris out from under the vine, this spent raceme with the pod came out. It was laying on the ground. Maybe the spent flowers just kind of fell onto each other and it happened? Its a mystery! It will be cool to see it progress and see how many seeds it has, and to try to germinate them. When I saw it, I was definitely confused. I have seen the actual seeds of "sea beans", which I understand are in the Mucuna group, and had thought that if my plant ever had seeds they would look like those right off the bat, it never occurred to me that they would be inside a seed pod, DOH! Just Homer me now.

Probably. Prune it heavily and get as much of the rootball as possible. Mine grows up 20 feet or more. Is yours that big?