Stump Grinding After Tree Removal: What to Expect

Stump grinding uses a spinning wheel with teeth to chew a stump down below ground level and turn it into a mix of wood chips and soil. It removes the stump. It does not remove the root system, which stays in the ground and breaks down over years. The hole left behind gets filled with the grindings or with clean soil, and it will settle as the leftover wood decays. How deep the grind needs to go depends entirely on what is going into that spot next, which is the one question to answer before the machine shows up.

Does Stump Grinding Remove the Roots?

No, and that is the most common surprise. Grinding works the stump and the top of the root flare, so the anchor roots running out under the yard stay where they are. For grass, mulch, or a bed, that is fine and they rot in place. It matters if you plan to dig footings, pour a slab, trench a line or set posts, because those roots are solid wood until decay catches up, and they can run well out from where the trunk stood. It also matters for species that sucker from the roots, since taking the stump does not always stop new shoots from coming up.

How Deep Should the Grind Go?

Deep enough for whatever goes there next, and no standard setting covers every job. Grass over the top needs less than a new tree going into the same hole. A fence post needs the wood cleared out below where the post will sit. A shallow grind under sod will sink later as the remaining wood breaks down, leaving a low spot that holds water every time you irrigate. Tell the crew the plan for the spot and the depth follows from that, which is a lot cheaper than bringing the machine back.

What Has to Be Marked Before Grinding Starts?

Everything buried, because a grinder cannot tell a root from a gas line. Use the free utility locate service, 811, before the work is scheduled. Then mark your own private lines yourself, since the locate service does not cover the sprinkler pipe, low voltage lighting or wiring that you or a previous owner put in. Irrigation and cable tend to run shallow near a house, and stumps close to a driveway often sit near a service lateral. Flag your sprinkler heads. Ten minutes of marking beats a wet trench and a repair bill.

What Do You Do With the Grindings?

You get a pile bigger than the hole, because ground wood fluffs up as it comes out. The usual options are raking it back into the hole and mounding it slightly to allow for settling, spreading it as mulch, or hauling it away and bringing in clean soil. Grindings are not the same as chipped brush, and neither one should be tilled into planting soil, because wood breaking down in the ground ties up nitrogen that plants want. As a top layer they are fine. If you want none of it left, ask for haul away and cleanup as part of the quote.

Can You Plant a New Tree in the Same Spot?

Not straight into a bed of fresh grindings. A new tree in that spot needs the wood cleared out deeper and the hole backfilled with real soil, or it will sit in decaying chips with poor contact and poor nutrition. The old root system is still down there too, which limits where new roots can go. Planting a few feet off the old trunk spot is usually the easier answer if you have the room. Decide this before the grind, because the depth and the backfill both change.

Getting the Scope Right in the Quote

Stump work is often quoted apart from the removal, so a homeowner can assume it is included and learn otherwise at the end. Ask what is covered: the grind, the depth, the fill, the haul off, and the cleanup. If you are still deciding whether the tree comes out at all, our post on saving a tree versus removing it works through that first. JCC Tree Service grinds stumps in Yuba City and the surrounding area, including stumps left behind by someone else. Straight quotes. We tell you the price and exactly what it covers before we start.

Written by the JCC Tree Service team. Updated 2026-09-11.