Good point, for those who might know, I'm burnng Pine, Juniper and Piñon.

Mike Gilmore wrote:

I would not use fire ashes on plants or compost due to the likely risk of
poisons from burnt coal that would build up in the soil over time.
I am not certain if such toxins would exist from ash of known woods. Perhaps
others could advise?
"Grandpa" jsdebooATcomcast.net wrote in message
...

Is there a compelling reason to use use or not use fireplace ashes in my
compost pile?