I read about your mother's use of nails and cord for a narrow trellis to grow clematis on. Do you happen to have a picture or a close up of how she accomplished this? I think I can visualize it but just wondered if you had something I could look at to be sure. I have two clematis I have to do something with and your suggestion struck me that I could grow them on the sides of my garage. I have too many irons in the fire this summer to be buying garden structures right now but need at least a temporary fix.