How about mounting a large trellis in FRONT of the wall, by puttting the post deep in the ground to support it? Just a thought. :) Arum

I have a brick wall that I grow vines on. I did something similar to what Arum mentioned. I bought a few sections of lattice and painted them to match the brick so they wouldn't stand out while there was no growth on them. I think they were about 8' long and 2 or 3' wide. I stood them on the narrow end and buried about a foot underground to give it support and leaned it against the wall. They are covered with annual vines every year and look really pretty. The one thing I would have done differently is that I should have bought synthetic (plastic) lattice instead of wood because the underground part is starting to rot. It's no big deal to replace it, I'm just lazy. lol I've also seen trellises that have stakes built onto them that you can just stick in the soil. They just weren't big enough for what I wanted and the lattice was very inexpensive and easy to put up.
Karyn

Hi! We had the same problem, but started using siding clips to hang trellises and it's worked like a charm! You can see an article I wrote about them on my blog; click the link below. :)

Here is a link that might be useful: Product I Love: Vinyl Siding Hooks