Can I plant where a stump was ground? What about the roots and chips?
Grass, yes: rake out the chips, fill with topsoil, and seed. A new tree on the exact spot, wait about a year or plant 3 ft to the side, because decaying chips and old roots starve a young tree of nitrogen. The roots left behind are dead and rot on their own over 3–10 years.
The grinder leaves and you are looking at a mound of chips, a shallow crater, and a question: now what? The answer depends on what you want to grow there. Lawn is easy. A new tree takes patience. Either way, the chips need to come out and the roots need to be understood, not feared. Here is the plan by goal.
| Goal | When you can do it | What to do |
|---|---|---|
| Lawn | Right away | Rake out chips, fill with topsoil an inch above grade, tamp, seed or sod, top up once as it settles |
| Flower or vegetable bed | Right away | Remove most chips, mix in compost and a nitrogen source, plant; expect to add soil the first year |
| Shrubs or perennials | Right away, offset from the old center | Plant between the old roots; add compost; water well the first season |
| A new tree on the exact spot | About 1 year later, or 3 ft to the side now | Ask for deep grinding (18 inches or more), dig out chips and root mass, backfill with real soil |
| Patio, path, or shed | After settling, 6–12 months | Grinding is not enough for anything structural; compact fill or choose full removal |
| Nothing for now | — | Rake chips level; the spot will sink a little over a few years, fill as needed |
What happens to the roots after stump grinding?
They stay in the ground and rot. Grinding takes the stump 6–12 inches below the surface, and the lateral roots below and around that, which can run as far as the tree's branches did, are left where they are. They are dead: with no leaves and no stump, they cannot make or store energy, and fungi and bacteria break them down over 3–10 years, faster in warm, wet soil. You do not need to dig them out for a lawn or garden. The one thing to plan for is settling. As the roots decay they leave small voids, and the ground above them sinks a little, so a lawn over an old stump often needs a second top-up of soil a year or two later. The exceptions are the sprouting species listed on should I just leave the stump?, which can send up shoots from live roots and need cutting or treating. For anything structural, full removal is the answer; the comparison is on the difference between stump grinding and stump removal.
Can I plant a tree where a stump was ground?
Not right away on the exact spot, for two reasons. First, the soil is full of wood chips and old roots, and as they decay, the microbes doing the work consume nitrogen from the soil, leaving little for a young tree. Second, a new root ball set into a mass of old roots has nowhere good to grow. The fix is either time or distance. Wait about a year while the chips break down, or plant 3 ft to the side of the old center now, where the soil is normal. If it has to be the same spot, ask the grinder to go deep, 18 inches or more, dig out as much chip and root material as you can, and backfill with real topsoil and compost before planting. Deep grinding is a line item; see how much does stump grinding or removal cost?
What do I do with the wood chips from stump grinding?
Get them out of the hole. The most common mistake is to rake the chips back into the crater as fill; they rot, sink, and leave a soft, yellow patch in the lawn a year later. Rake them out onto a tarp instead. A medium stump produces a couple of wheelbarrows of chips mixed with soil, which are useful as mulch on paths and around established shrubs and trees, or in a compost pile where their carbon balances grass clippings. Keep fresh chips off vegetable beds and away from young plants for a season, since they tie up nitrogen while they decay. If you would rather not deal with them, most companies haul the chips and backfill for $50–$150 if you ask when you book. The same rule applies to chips from the tree removal itself, covered on can I keep the wood? What does tree removal include?
How do I fill the hole after stump grinding?
With soil, not chips. Once the chips are out, fill the depression with topsoil, mounding it an inch or two above the surrounding grade, because it will settle as you water it and as the roots below decay. Tamp it with your feet or the back of a rake, water it well, and seed or lay sod. Check the spot after a few months and again the following spring; if it has sunk, add more soil and reseed. In a bed, mix compost into the fill. That is the whole job, and it takes an hour for a typical stump.
Will grass grow where a stump was ground?
Yes, as long as the chips are out and there are a few inches of real soil on top. Grass seeded straight into chips comes up thin and yellow, because the decaying wood ties up the nitrogen the grass needs, and it stays that way for a season or two. With the chips removed and topsoil added, the new grass blends in within a few weeks. A light application of nitrogen fertilizer in the first season offsets whatever wood is still in the ground. If the patch keeps yellowing or sinking a year later, there are more chips down there than you thought; dig a little deeper, replace with soil, and it will hold.
No independently confirmed professional review is on file yet.
Not yet independently reviewed. Figures are typical US ranges for planning purposes, not quotes.