Wrench wrote in message . ..
Is there any good use for coal ash in the garden?
Wrench
Coal ash can be acidic or alkaline, based on the properties of its
source coal. I'd be leery of using it in a garden because it can
contain a number of heavy metal byproducts. It is considered quite a
source of environmental pollution.
Here's a PDF file you might find interesting:
http://www.mcrcc.osmre.gov/PDF/Forums/CCB/5-1.pdf
Mark