After a stump is removed, backfill the hole in layers, firm each layer, and finish with topsoil mounded a little above the lawn, because loose fill always settles. Let rain settle it, top up the low spots in thin layers, and make sure the finished ground still slopes away from the house.
A removal hole is not a grinding hollow
Grinding leaves a shallow, stump-shaped hollow full of chips. Removal leaves something else. When the root ball is lifted out whole, it takes a large plug of soil with it, and what remains is a crater wider and deeper than the stump ever looked, with torn root ends in the walls and loose soil around the rim. On clay ground the spoil comes out in red clods. The machine has also crossed the lawn to get there. So leveling after removal is a small earthworks job: refilling a real volume of ground, then repairing the surface around it.
What to fill it with
Use soil, and only soil. Do not throw brush, chunks of root, broken concrete or bags of leaves in the bottom to save fill. Anything that rots or leaves gaps will drop the surface later. Subsoil, including clay, is fine for the lower part of the hole. The top layer should be real topsoil, because that is where grass or plants will root. NC State Extension points out that Southeastern topsoil tends to be thin, just a few inches over clay, so you may not have any to spare on site. Bought topsoil that roughly matches your own soil is the usual answer.
Fill in layers, not all at once
A hole filled to the top in one go traps air and loose pockets, and it sinks for months. Fill a shovel-depth layer at a time instead. Spread it, firm it by treading it or tamping it with the back of a shovel or a hand tamper, and soak it with a hose before adding the next. Water helps soil settle into the gaps. Keep going until you are level with the lawn, then add the topsoil on top and leave it mounded slightly higher in the middle. On a big hole, the loader that lifted the stump can push fill back and track over it, which firms it far better than feet.
Give it time to settle
Even well-firmed fill keeps settling for a while, and rain is what finishes the job. Leave the patch through a few good soakings before you call it level. Then look at it across the lawn, low and from the side, where a dip shows up most clearly. Fill any low spot with more topsoil, firm it and water it. Some holes need two or three rounds. This is also the time to rake out stones and root pieces that work their way to the surface. Do not lay sod or set pavers until the patch has stopped moving.
Leveling small dips in the lawn
Once grass has grown in, small dips are fixed from the top. Clemson Extension's topdressing advice is to spread no more than half an inch of material at a time, during the lawn's active growing season, and to rake it down into the grass so the blades still show. It says to use topsoil that closely matches your native soil, or compost, and to use sand only where the native soil is sandy. Repeat every few weeks until the dip is gone. For a hollow too deep for that, slice under the sod with a flat spade, fold it back, add soil, and lay the sod back down.
Keep the water moving away from the house
Stumps near a house leave holes near a foundation, and a careless fill can tip water toward the wall. The International Residential Code, the model code behind most residential building codes, says the grade should fall at least six inches within the first ten feet from a foundation. Your county's building inspections office can tell you what applies to your house. In practice, finish the fill so it sheds water outward, never toward the wall, and check after a hard rain. How to fix a yard that holds water covers wider drainage problems.
When several holes mean regrading
Take out several stumps from one area and you no longer have a few holes to fill. You have a patch of disturbed ground that needs grading as a whole. That is when a loader earns its keep, shaping the area so it drains and blends into the lawn around it, followed by finish raking before seed or sod. Finish grading vs rough grading sets out how the rough shaping and the final pass differ. Ask for the backfill and grading to be quoted with the removal, so the stumps leave and the ground is put right in one visit.
Seeding or sodding the patch
When the patch has stopped moving, it is ready for grass. Clemson's lawn establishment advice is to have the soil tested a couple of months ahead and, where the ground is clay or worn thin, to spread up to three inches of topsoil before planting. Then plant when your grass's season comes round. Matching the grass and the planting dates are both in grass seed and sod after stump grinding. The same steps apply over a removal hole, once the fill has settled.
Common Questions
How do you fill a hole after a stump is pulled out?
With soil, in layers. Fill a shovel-depth at a time, firm it and water it, then add the next. Finish with topsoil mounded slightly above the lawn. Do not bury brush, roots or debris in it, and expect to top it up after a few rains as it settles.
How long does it take for a stump removal hole to settle?
Most of the settling happens over the first few soaking rains after backfilling. A well-firmed hole usually needs one or two top-ups before it stays level. Wait until it has stopped dropping before laying sod or setting anything hard on it.
Can I use red clay to fill a stump removal hole?
For the lower part of the hole, yes, if it is firmed and watered in layers. The top few inches should be topsoil, because grass and plants root poorly in bare clay. Leave the topsoil mounded slightly so the patch sheds water as it settles.
What to Do Next
If the stump has to come out whole, have the backfill priced along with the removal. Photos of the stump and the route, plus your town, are usually enough: (828) 574-4474. Stump removal explains how the root ball is lifted.