Will sawdust that has varnish kill my garden?
A friend of the family asked if we wanted a large pile of sawdust he had from doing some woodwork. Sawdust makes good mulch. We wanted to accept, but some of the furniture that the sawdust had come from had been varnished and we weren't sure if that would kill our garden and/or poison the plants. Is it dangerous to use this sawdust.
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