perennial food vine for the plains

I need to shade the west side of structures - 10-12 feet high -  on the plains of Western Oklahoma, zone 7. It's basically 100 degrees in July, August, September when the shade is needed. Winters are cold and windy. In spring the wind blows 20+mph regularly. It was suggested that a fence will be needed to protect the young plants from the heat and wind. Are there perennial vegetables that will grow this tall and withstand these conditions? Will they need irrigation forever?

Hi Denise, one house we owned in the Phoenix area was north facing with windows and sliding glass doors on the south side.  We had an open arbor structure over the patio with grapes planted at the base of each post and the posts sent in a bricked in bed filled in with river rock.  The grapes thrived in this, grew up the posts, and covered the arbor in summer giving that side of the house plenty of shade.  During the winter, the grapes died back allowing the sun through the arbor to warm the house.  

One of the things I really liked about that house.  It worked well.

Bonnie