What to do with stump grindings: mulch, compost, haul away, and local limits

What are stump grindings, and what do I do with them?

Stump grindings are the wood chips and shavings a grinder leaves behind. You have four main choices: haul them off, compost them, reuse them as mulch away from the hole, or leave them in place. The right choice depends on what you plan to grow there. See stump grindings and wood chips for the terms.

Iowa State Extension says “When complete, a large pile of wood shavings will remain in the hole” and “Most arborists will not remove this material unless it is requested.” So it helps to decide before the work starts.

Why not mix the chips into the soil?

Because the wood uses up the nitrogen plants need. Illinois Extension says “Wood material mixed in with the soil can tie up nitrogen as the wood breaks down, making it difficult to grow lawn, or another plant where the tree once stood.” This is nitrogen tie-up.

Purdue Extension gives the same warning in terms of the carbon to nitrogen ratio: “The woody debris material created from stump grinding has a high carbon to nitrogen (C:N) ratio.” Iowa State Extension goes further. It says the shavings “will drastically change the structure, moisture-holding capacity, and nutrient balance of the soil, making it difficult for any new turf or other plants to grow.”

Two practical points follow:

• Do not rake a thick layer of chips over your lawn and expect grass to come through.
• Do not plan to plant into the old stump spot until the chips are removed or the hole is refilled with topsoil.

Can I compost stump grindings or take them to a composting site?

Yes. Iowa State Extension says “Any shavings or soil removed after stump grinding can be composted or sent to a municipal composting site.” Call the site first, because each one sets its own list of accepted material.

Hamilton County runs three public yard trimmings drop-off sites through Hamilton County ReSource. The page says “All collected material is composted.” The ReSource guidelines name brush and tree branches. They give a 4 foot length limit and a 12 inch diameter limit, and they add that “Yard trimmings in commercial vehicles or from commercial establishments cannot be accepted.” The page does not mention ground wood chips, so call ReSource before you haul a load.

Do local yard waste programs take stumps or grindings?

Many do not take whole stumps, and the rules for ground chips are often silent. Read each page for your town. These pages were checked in October 2026.

The Cincinnati page also says that “Yard waste containers and bags exceeding 25 lbs. in weight will not be collected.” The page does not name ground chips, so ask before you set anything out.

If you live in another town, search the city or county public works page for “yard waste” or “brush pickup”. Look for words like “stumps”, “root balls” and “wood chips”. If a page is silent on chips, call.

Can I use stump grindings as mulch?

Yes, in beds and on paths, with care. The International Society of Arboriculture (ISA) says “Too much mulch can be harmful.” Keep it away from trunks. The ISA also says that “If mulch is piled against the stems or tree trunks, pull it back several inches/centimeters so that the base of the trunk is exposed.”

Grindings are not the same as clean arborist chips. They often include soil from the hole. The post can I use stump grindings as mulch covers the details. Use mulch only where you do not plan to plant right away.

Who hauls the chips away?

Whoever you agree on before the work starts. Iowa State Extension says most arborists will not remove the shavings unless asked. Cincinnati Stump Grinding says: “And if you’d like those wood chips hauled away and replaced with fresh topsoil, we offer those services too.” The business grinds stumps in Dayton, Cincinnati and Northern Kentucky. Ask about haul-away when you request your free estimate.

If you haul them yourself, check the local rules above. Hamilton County ReSource, for example, says “Yard trimmings must be brought to locations in containers or bags - brown paper bags preferred.” It also lists a “Hamilton County residents only” limit, so a drop-off site is not open to everyone. Confirm what a site accepts before you load a truck.

For the full cleanup plan, read how to clean up after stump grinding and what to do after stump grinding.

Next step

If you want the chips gone and fresh topsoil in the hole, see the chip haul-away and topsoil service. Call (513) 587-6772 or send photos for a free estimate.