Answer: When you rototill, rake up all the dead vines and roots and they lay a weed barrier fabric over the area. I wouldn't use black plastic because it doesn't allow rain water to penetrate into the soil, which is not a healthy thing for your soil. After anchoring the weed barrier down, cut X's or holes for your new plants and when you are finished planting, cover the weed barrier with bark mulch. Best wishes with your garden.
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