I was trying to do something useful with my pellet stove ash. After the ash cooled outside in a covered metal can, I would put it in a composting mulcher. It was a mulcher that flips around. I also would put grass clippings in the mulcher during summer. (Not much food waste because I try not to throw food out) So the mix turns to "soil" within the year and I put some in my very small garden (basically tomatoes, peppers, cucumbers). Now I ask myself if I am doing more harm than good? I live in a city...I am a terrible gardener as it is...but I wonder if pellet ash is good for some plants, bad for others or good/bad in general?