| Here's what I would do. There certainly must be neighbors who have this vine, or wild areas where you see it growing. Ask the property owner for permission to take cuttings. I cannot imagine that it could be a problem as this vine is a thug. Just take some cuttings, root them, and plant. It's so much easier to take cuttings and it's a lot faster. |
Here is a link that might be useful: propagation