To make it more difficult- it can't "stick", I was thinking campsis, but it makes such an aweful mess.
OK, thanks again for any tips.

Passion vine of certain species may be handle it. I know most people don't water theirs a lot, and it is not picky about fertilizers in most cases. Incarnata and actinia are noth tough and can take cold, just mulch them up before your first frost. They'll die down but pop back up quickly in spring, reaching over 30' after becoming established

I was just going to ask this- then noticed I asked this and forgot!
Passiflora isn't quite hardy here, well not in this exposed location... but thanks for the idea.

Any other ideas? I'm still wishing for grapes and hops but it is pretty dry.
Silver lace vine would also work but every time I buy them they seem to winter kill - even though they are supposedly hardy here. Maybe if they weren't in the pot over winter would help!