I had a similar problem a few years back. I was fortunate enough to
have a friend that was in the Home Improvement business. He gave me an
8 foot section of black rot iron railing, that someone was going to
junk. I installed it vertically against a back fence, and it provided
a wonderful solution. The vine was a hybrid Flying Saucer Morning
Glory. . .I think!

Myrl Jeffcoat
http://www.myrljeffcoat.com