catjac1975
Garden Master
- Joined
- Jul 22, 2010
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- Location
- Mattapoisett, Massachusetts
I have used cardboard in the manor that you describe to kill weeds in difficult areas, ie. near a fence and near a stone wall. The cardboard breaks down quite quickly and the more difficult weeds come back. It does help. I had better luck smothering weeds with a large black plastic sheet held down with rocks. I pulled it back a few feet at a time and tilled it. If I recall I let it rest for many months before beginning to remove it. We also use a dragon flame thrower. It knocks back the weeds but does not seem to permanently remove them.