Hi all,
I have a cobaea growing in a pot that I'm afraid might be a little too small for it. The largest thing that I have is a half whiskey barrel, but it already has two sweet peas going in it. It looks like there is room for the cobaea in there, but I know it takes over once it gets going. So... two questions:

1 - Can my cobaea play nice with my sweet peas? I can try to give them separate trellis systems... it might be crazy looking
2 - Can a cobaea do well in an 18-20 inch urn?

I would appreciate any feedback

Thanks!