Can Clematis climb this?
I have a group of clematis that I rescued from the compost at a nursery where I worked last year. Only a few have ID (Betty Corning, Henryii), while the others are mysteries. Do they stand a chance of climbing up my 5' aluminum fence, which has straight 2-1/2 inch square posts, with straight 5/8-inch square pickets, and 2 horizontal rails at the top? I.e. will they get enough "traction" to climb up the metal pickets, or do I need to rig up some netting or twine to get them to climb?