I have let my grey slate patio get over run with weeds I’m afraid, we’ll they are in the grouting, what grouting is actually left! I have read that vinegar and salt will kill the weeds, I definitely don’t want to use chemicals as it’s a wildlife garden and I have frogs and hedgehogs visiting regularly. If a salt and vinegar solution is the way to go should it be applied at night? Thanks in anticipation..
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Gardening
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