On Wed, 12 Nov 2014 19:32:22 +0000, Janet wrote:
In article ,
lid says...
Carpet is also better as it allows water through
Isn't that a bad thing if you are trying to kill couch grass?
Doesn't matter. Lack of light kills plants.
Actually it's positive, because the trouble with closing off the soil
altogether is that the lack of water (and associated oxygenation) causes
it to become very heavy over time.
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Gardening in Lower Normandy