I've never potted it, so that could be the cause. I haven't fed it yet either.Newt wrote:A couple of thoughts come to mind. I'm wondering when you last repotted it. It may be rootbound as that will cause yellowing of leaves and a slowdown of growth. It may need a pot 2" larger.
Lack of bloom could be from too much nitrogen. Perennial vines that get too much fertilizer will put their energy into the growth of leaves at the expense of flowers.
Any of that sound like the cause?