A commercial stump remover or plain ole saltpeter (aka potassium nitrate) will soften the wood and make it amenable to a slow and thorough burn. Using a drill with a 1-inch bit eight to twelve inches long, drill deep holes in the top of the stump spaced three to four inches apart in all directions.

What will dissolve tree stumps?

Thanks to modern developments in horticulture, ridding your yard of tree stumps is as simple as drilling holes and filling them with granules. Most stump-dissolving herbicides are composed of potassium nitrate, a slow-acting chemical that may take several weeks to dissolve stumps fully.

What kills stumps fast?

For a stubborn stump you can try a chemical stump remover or an herbicide containing glyphosate or triclopyr instead of salt. While a chemical herbicide will kill the stump faster, keep in mind that it could kill the roots of surrounding trees or shrubs as well.