Stump Grinding FAQs: What, Why & How - Green Vista Tree Care (2024)

Stump Grinding FAQs: What, Why & How - Green Vista Tree Care (1)

After a tree has been removed, what happens to the remaining tree stump? Does it decompose? Should you remove it? Is stump grinding the best option? If so, how is that done?

We answer all of those questions and more in the stump grinding FAQs below.

How long does it take for a tree stump to decompose naturally?

Decomposition time depends on the tree. Some tree stumps start to send out shoots in an effort to regrow; they can eventually grow into a new tree instead of decomposing. The stump from an older, larger tree can take 20 years or more to rot and decompose naturally. On the other hand, ants, bugs, diseases, fungus, mushrooms, or moss will sometimes start to grow on the stump, speeding decomposition.

Whichever way you look at it though, a naturally decomposing stump takes a long time to disappear and can be an unsightly, unsafe hazard during that time.

What options do I have to get rid of a tree stump quickly?

There are two basic ways to quickly remove a tree stump: dig it out or grind it up.

  • Digging out a tree stump involves using an excavator and will cause major damage to a large area around the stump. It cannot be done for stumps that are near structures or hardscaping, and is generally expensive. However, it can remove all (or nearly all) major tree roots and may be a good option if you'll be removing many stumps at once and landscaping the area afterward.
  • Grinding a tree stump uses a stump grinder to turn the stump into wood chips. It usually involves less mess and a much smaller hole than other options, and can be done in nearly any location.

What is a stump grinder?

A stump grinder is a piece of heavy equipment with a spinning carbide-tipped steel wheel on the front (similar to an extra-large circular saw blade). We lower the wheel onto the edge of the stump and move it from side to side as it spins, grinding deeper into the stump with each movement. Eventually, the whole tree stump is ground up into small wood chips, including the main roots below the stump.

Why would I choose to grind out a stump?

Most people choose to grind a stump after a tree removal as it is an eyesore, because it is a tripping or safety hazard, or because they want to plant something else in that area. If you've removed a diseased or pest-ridden tree, grinding a stump can help ensure that the disease or pests do not spread. Stump removal also prevents the tree from growing back.

Stump Grinding FAQs: What, Why & How - Green Vista Tree Care (2)

Will stump grinding damage my property?

Stump grinding will not damage your property if done correctly. We put down mats to protect your lawn/landscape from heavy equipment and use barriers to cover or protect nearby structures. Grinding a stump does leave a hole, which we can fill in with dirt and the wood chips created.

Does the stump grinder make a lot of noise/mess?

Yes to both. It is a very loud machine that is literally grinding up a very hard piece of wood. The woodchips and sawdust that it creates can fly in all directions (which is why we use protective barriers to prevent damage to nearby structures).

Is stump grinding a dangerous process?

As with all tree removal equipment, stump grinding can be dangerous. When using a stump grinder, we take every safety precaution, are familiar with the powerful equipment, know the risks involved, and are properly trained to eliminate excess danger. Using dangerous equipment is one of the many reasons that Green Vista carries the proper insurance for jobs of this type.

We recommend that you stay a far distance away while a stump is being ground as the blade can sometimes kick up rocks and debris that can cause injury.

How long will the stump grinding process take?

For one stump, the process can take 15 minutes to 2 hours, depending on the size of the stump, the location, and more.

Will stump grinding remove the roots?

Stump grinding only removes some of the tree’s roots. We grind the stump about 6 to 8 inches below ground level. However, roots are quite extensive and spread both outward and down from the stump; it’s likely that there will still be many roots underground. This is why you generally can’t replant a tree in the exact spot where a tree used to stand.

Does stump grinding leave a large hole in the ground?

The size of the hole depends on the size of the stump that was removed. The width will be a little wider than the stump and the depth will be about 6 to 8 inches. Most property owners ask us to fill the hole with the wood chips from the stump.

Will you add grass seed to the area where the stump was ground?

That is not part of our normal stump removal process. You can add grass seed or sod to the area, or you might want to work with a landscaper for that part of the process.

Stump Grinding FAQs: What, Why & How - Green Vista Tree Care (2024)

FAQs

How long does it take for stump grindings to decompose? ›

Allow the stump grindings to decompose in your compost heap, along with your other organic waste. It will take approximately three to four months to complete the process, but once the stump grindings have decomposed you will have a nice pile of compost to use in your garden.

What are the disadvantages of stump grinding? ›

After stump grinding, the roots are also chopped up. This can lead to decay and fungus growth in the remaining wood.

Do trees grow back after stump grinding? ›

If the roots are still intact, it's possible for the tree to start growing again. However, when stump grinding is done right, it won't have a chance to grow back because the main root system will be broken up and the tree will die. That's why it's important to hire professionals to grind down your tree stumps.

What to do with tree roots after stump grinding? ›

It's okay to leave tree roots in the ground after stump grinding. They will decompose after a while and become part of the soil. However, if they are making it hard to maintain your lawn, consider removing them.

How to make stump grindings decompose faster? ›

High-nitrogen fertilizers can significantly speed up the natural decomposition process of a tree stump. Nitrogen is a vital element that promotes the growth of bacteria and fungi, essential decomposers.

Are stump grindings good for soil? ›

The wood chips used during the stump grinding process will provide additional nutrients to the soil as they break down over time, which is perfect if you want to grow healthier plants! Some of the most prominent nutrients that are found in wood chips include nitrogen, calcium, potassium, and carbon.

Is it better to grind stumps or dig them out? ›

Unless you're excavating or you insist on planting a new tree right where the old one was, stump grinding is your best option. Either way, working with a professional is the way to go. Both grinding and removing tree stumps require specialized equipment and experience.

Is it better to dig up a stump or grind it? ›

Generally speaking, full stump removal is only useful if you're clearing a lot or otherwise don't mind collateral damage or how the final product looks. On the other hand, stump grinding is a simpler, more manageable route for homeowners to take, because it doesn't involve pulling out every single tree root.

What happens if you don't remove a tree stump? ›

Don't just leave a stump after felling a tree.

To leave the stump could result in the rotting wood attracting insects and fungus that could then infest or infect your other healthy trees. Something you really don't want.

Should you remove wood chips after stump grinding? ›

After stumps have been ground, the mulch is fairly aerated so be careful not to remove too much as the mulch will sink over time, potentially leaving a hole. Now you know what stump grinding mulch can be used for, go ahead and give it a go!

Can a healthy tree grow from a stump? ›

It's entirely possible to regrow certain species of trees from a trunk. Read on to learn the best way to grow back tree stumps into trees.

Will grass grow in stump grindings? ›

The woody debris material created from stump grinding has a high carbon to nitrogen (C:N) ratio. This reduces nitrogen availability for the new tree or grass. Also, there will be significant settling of the ground below the stump as it decays and loses its structural fiber.

How deep can a stump grinder go? ›

How deep do you grind a stump? We normally grind down 16 inches below grade so there is ample soil depth to grow grass. We also offer a shallow grind where we go 4 inches below grade. This saves money but you won't be able to grow grass there so we recommend this for a stump in the woods line or perimeter of the lawn.

How to get rid of a stump in 2 -- 3 days naturally? ›

To use rock salt to kill a tree stump, start by drilling holes into the tree stump. Then, pack the holes with rock salt and cover the stump with rock salt. Add a thick layer of soil and mulch on top of the stump, then pour water on top of the soil and mulch layer.

Should you leave the wood chips after stump grinding? ›

Adding them to your compost pile will give your compost bin more nitrogen. However, what you should never do with the wood chips from stump grinding is to just haul them away. This is not environmentally friendly, and you can always find a way to put them to good use instead.

Is it OK to use stump grindings as mulch? ›

Stump grindings make for excellent mulch. They help to insulate your soil, retain the soil's moisture, and even make weed removal easier. To do this, you'll need to first inspect the stump grindings and make sure they're free of grass. If they aren't, remove the grass (leaves are fine and can stay).

Does ground settle after stump grinding? ›

The remaining fibrous matter beneath a former stump site is beneficial to soil building. However, the newly added topsoil may settle after rains and leave a depression in the lawn. You may need to remove the sod from time to time and add more topsoil to level the area.

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