I have a vegetable garden and I like to BBQ. I only use hardwood lump charcoal for BBQ.
My question is that does it help my garden if I put the ash to my garden? Also, how about the charcoal dust at the bottom of every lump charcoal bag? Will they help my garden as well?
I heard of biochar but don't think lump charcoal counts. However, better than going to trash I guess?