Name: Mary My little patch of paradise (Zone 7b) Gardening dilettante, that's me!
What I've heard/read is that 7 layers of cardboard/newspapers forms an impenetrable barrier. @Dave might have some additional insight.
Northwest Georgia Daylily Society I'm going to retire and live off of my savings. Not sure what I'll do that second week. My yard marches to the beat of a bohemian drummer...