Hi, Tee and Cheshire, Sadly my plants never produced enough fruit to even come close to justify keeping them. Just a few fruits a year and that's only in good years. It's good to see you are getting some fruit so soon. I think that mine just might be one that is just not productive. I do see pollinators, so I know that is not an issue.
The vines do need something to support them if you want to use them as a hedge. They can get tall since the individual stems run long, but they fall over and spread out, much like a blackberry bush will do. The only difference there is that they get larger than the blackberries. They also tip root very easily.
As to invasiveness, I've been trying to remove mine for three years now. Last year I started using RoundUp on them, because digging them up wasn't working.
Wish you both luck with yours.
