I've used wood ash as a potassium source for years in combination with
blood and bone for nitrogen and phosphorus and seaweed for trace elements,
plus compost. No problems for me and some of the major organic growers
around here. The exception would be treated timber, but you shouldn't burn
that anyway.

Mike

In article , "Tim"
wrote:

Good Morning All!

Is there any productive use of Charcoal Ash (from a BBQ Grill) in the
garden.

Thanks,