07-10-2015, 05:16 AM
Mow it down to the ground, cover with a big piece of weedcloth (sold by the roll at Depot, or by the piece at Rudy's). Weigh the cloth down with rocks, or just cover it with several inches of fresh mulch and plant new groundcover. Make sure there's a wide margin (couple of feet) all around the edges so the old weeds don't escape.