My passion vine lost all it's leaves after the last heavy snow. I thought it was dead, as it was the first time it had done that since I put it in the ground 4 years ago.

Under this forum's direction I waited and watched- and it came back! I was so pleased.

Well, it's been growing like crazy, but no blooms. Almost a month ago my dog went after a tennis ball that mistakenly landed behind the vine and the fence line. As the vine is attached to a lattice, said dog got her head stuck for a few seconds while I ran screaming to rescue her and the plant.

I lost a few long shoots, but the vine seemed to be fine and growing. It still seems to be growing but I've noticed yellowing leaves around the base of the plant (it's never done this before to my recollection)

Is there something I can do? I thought since it's been so long the plant weathered the doggy tussle okay. Maybe the two aren't related?