Interesting. I haven’t had that problem. I put mine in undersized pots and next to the southwest patio door, plus a grow light for about and hour or two after sundown.
They don’t get too tall, and if they did, I would probably just pinch the top off. LOL. I like flicking and detest winding vines around supports. LOL
Mine are kind of starved for light. They’re on the north side, and I have grow lights on them 16 hours a day, but it’s just enough to keep them alive. If they were in any other room the cat would get at them, this is the only room she’s not allowed in.
The house I’m trying to build is almost half greenhouse. You can see by the designs where my priorities lie :)