Posted: 16/06/2015 at 19:14
I was wondering if it would harm some kale plants I had just planted, to put coffee grounds around them so my OH googled it. Imagine my surprise when he found out that it was illegal to use coffee grounds to deter slugs as pesticide tests have not been carried out on coffee grounds! It is alright, apparently, to use them as a mulch or to enrich compost. So now we know!