Rebar (assuming it weathers well) trellis like this? The "roughness" of it would not be a design problem. I like the way it is offset from the supporting structure.
Very simple and free knit pattern for mitts.
Miss Chaquetas: octubre 2011
combination of grasses with daylilies | View Image 'Clematis Vines with Daylilies'
Tips on growing clematis--did you know they can't climb wooden trellises? They don't twine; they wrap, so any support thicker than 1/2 inch won't work. Use twine or trellis netting to give the illusion of climbing on your wooden trellis.