Well not sure if ashes have any nutritional value, but I do know (from my parents) that people used to spead ashes in their garden, the reason being was to make bugs "think" that there was a fire close by and they would move. Not to sure how accurate that iinfo is but never knowSo I was wondering. I have a fire pit in my back yard and occasionally burn dead branches and leaves and paper. Think I could top my soil off with some of the ashes and it would help my grow any?