As far as eradicating your hop vine; cut and dig it out in the fall. If your hop vine is very mature and established, and if mechanical eradication doesn't do the trick, you may need to resort to an non-selective herbicide. Fall is the best time for chemical treatment because the plant is directing energy towards its roots to take it through winter; thus, the chemical will also travel downward. If the hop vine begins sprouting again next spring, you could carefully apply an herbicide to the new growth.
You mention your arch is on the north side of your home. Many vines need sun produce flowers. You may need to select a perennial vine with attractive foliage and no flowers. Some vines, such as Boston Ivy and Virginia Creeper have gorgeous fall leaf color. I am referring you to a publication that lists a variety of vines to choose from (see link below). Spring is a good time to plant, but if you find a deal too good to pass up at the nursery this fall, you could plant now.
University of Minnesota Yard and Garden Brief: Growing a Living Screen
Browse related Faqs by tag:
landscaping, vines, minnesota, horticultue