This article was co-authored by Scott Johnson and by wikiHow staff writer, Luke Smith, MFA. Scott Johnson is the Owner and Lead Design Consultant for Concrete Creations, Inc., an award-winning landscape and design company based in the San Diego, California metro area. He has over 30 years of experience in the pool and landscape construction industry and specializes in large estate outdoor environment construction projects. His work has been featured in San Diego Home & Garden Magazine and on Pool Kings TV Show. He earned a BS degree in Construction Management with an emphasis in Architecture and CAD design from Northern Arizona University.
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Tree stumps are stubborn landscaping obstacles that can resprout or take years to rot if not killed and removed. Luckily, there are a number of straightforward solutions that’ll uproot that pesky stump and make way for other lawn or garden features. We’ll show you how to kill a stump with salt, herbicide, or a tarp, as well as slightly more involved methods like burning it away or physical removal. Don’t call the landscaper just yet!
Things You Should Know
- Drill several deep holes into the stump and fill them with Epsom salt or herbicide to kill the stump from the inside out.
- Cover the stump with an opaque tarp for several months to deprive it of sunlight, which will gradually kill and rot the stump.
- Douse the stump in kerosene or use charcoal to burn the stump away.
- Use a stump grinder, chainsaw, and a shovel to grind and chop the stump away.
Steps
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Obtain Epsom salt, rock salt, or brush killer. Using Epsom salt or rock salt is an easy way to kill a stump on the cheap. It takes several months for the stump to die, so it might not be your best bet if you need to get rid of the stump quickly. An herbicide like brush killer, however, is both more reliable and faster-acting.[1]
- Do not use regular table salt, which is harmful to the soil surrounding the stump. Use 100% Epsom or rock salt with no added ingredients to avoid disturbing the land and plants around the stump.
- If you decide to use herbicide, use an product containing glyphosate or triclopyr. While a chemical herbicide will kill the stump faster, keep in mind that it could kill the roots of surrounding trees or shrubs as well.
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Drill 1 in (2.5 cm) holes in the stump. Drill several, roughly evenly-spaced holes across the surface of the stump, so the salt or herbicide will be able to penetrate into the wood. Make the holes about 1 inch (2.5 cm) wide and at least 8 inches (20.3 cm) deep, and space them about 3–4 in (7.6–10.2 cm) apart. Aim to drill about 6 holes, or more for a larger stump.[2]
- If you don't have a drill bit this long, use an ax to chop into the wood and make gouges as deep as you can.
- If you're working with a stump that has large above-ground (aerial) roots, drill holes in those as well.
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Pack the holes with salt or herbicide, water, and wax. Fill up the holes 3/4 full with Epsom salt or rock salt. Don't forget the holes you drilled in the aerial roots. Then pour a small amount of water into the hole—just enough to cover and moisten the salt.[3] Finally, light a plain, unscented candle and drop wax into the holes to plug them.
- If you’re using herbicide, consult the instructions on the packaging for proper application. Some require a particular ratio of herbicide to water for effective use.
- It's important to make sure the salt stays in place, rather than scattering over your yard, since excess salt can be harmful to topsoil and the roots of other plants.
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Cover the stump with an opaque tarp. Put a plastic tarp, trash bag or another nonporous item over the stump to cover it. The tree stump will die more quickly without sunlight and rain to continue nourishing any shoots that come up. After 6 weeks to several months, the stump will die. Check on it every once in a while to see how things are progressing. When the stump is dead, it will begin falling apart on its own.[4]
- After the stump has died, remove it with a stump grinder Or dig it out.
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Cover the stump with an opaque tarp. This method is low-cost, but can take a long time—up to several months. The tarp slowly kills the stump by denying it sunlight. Put a dark tarp or trash bag over the stump so it won’t receive sun or water.[5]
- Stake the tarp to the ground so it doesn’t get removed by weather or wildlife.
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Wait 3 to 6 months for the stump to die. During this time, the stump will slowly wither and begin to rot. Check on it from time to time to see how things are progressing. To speed up the rot, add a scoop of nitrogen fertilizer on top of the stump every couple of weeks.[6]
- Alternatively, use a stump removal solution to speed the process along, which is often available at nurseries and garden centers.
- In addition, pour some Epsom salt into cracks that appear in the stump, or drill holes in the stump and fill them with salt to make it go faster.
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Cut away any saplings that crop up. As the stump dies, it may send up shoots in an attempt to regrow. Until the stump is dead, cut saplings off the base of the trunk as they sprout, or paint them with a woody brush killer that contains triclopyr.[7] If your goal is to allow one tree to grow from the old stump, cut off additional saplings and do not apply an herbicide.
- Once the stump has died, it will take up to 10 years to decay naturally, or it may be removed using a grinder or other tools.
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Drill holes in the stump. Burning a stump is a good way to remove the stump after you have killed it. Start by drilling plenty of holes across the surface of the stump about 1⁄2 to 1 inch (1.3 to 2.5 cm) wide and at least 8 inches (20.3 cm) deep. Penetrating deeply will ensure the stump gets burned down to the tips of the roots so that it will be easy to remove.[8]
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Pour kerosene into the holes. Soaking the stump with kerosene will enable you to light it on fire so it will burn into ash. Make sure the stump is fully saturated, or the fire may go out before it reaches the tips of the roots. About 1 US qt (0.95 L) of kerosene is enough to burn most stumps.[9]
- Don’t use diesel fuel, which burns too quickly to be effective and is more harmful to the soil than kerosene.
- Check local city ordinances to make sure it’s legal to do a controlled burn.
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Build a fire on top of the stump. Put scrap wood on top of the stump and use a fire starter to ignite it. As the fire burns down, the stump will catch and burn up. Monitor it closely to make sure the stump actually catches, and add more wood as necessary to keep the fire going.[10]
- Alternatively, pile charcoal on top of the stump and light the charcoal on fire. The coals will slowly burn down through the stump. This method reduces the chances of burning nearby plants.[11]
- Be sure to monitor the stump as it burns to ash. Don’t leave it unattended, in case the fire gets out of hand.
- Depending on the size of the stump, the burn may take several hours.
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Dig out the ashes and fill in the hole with soil or mulch. Use a shovel to remove all of the ashes, down through where the roots were, and fill in the hole with fresh soil. Dispose of the ashes in a garbage bin, or distribute them over your garden for use as a fertilizer—wood ashes are a valuable source of nutrients for plants![12]
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Purchase or rent a stump grinder. A stump can also be removed by physical means. Rent a stump grinder from a home improvement store. This machine has a rotary cutter that drills into and grinds up the stump, and is ideal if you have a huge, stubborn stump you need to remove. Renting a stump grinder is often the most cost-effective solution, but if you have a lot of stumps to grind, it may be worth a full purchase.[13]
- Use protective equipment, too. Goggles and a mask will protect you from sawdust and flying wood chips.
- If you don't enjoy handling heavy machinery, hire a landscaper or another professional to remove it for you.
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Cut the stump close to the ground with a chainsaw. Use a chainsaw to level off the stump just a few inches from the ground. Remove any branches or roots that stick up too far off the ground so that the stump grinder will have a stable surface on which to operate.[14]
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Grind up the stump. Put on your goggles and mask, and position the stump grinder over the stump. Then, following the manufacturer’s instructions, move the grinder slowly across the stump's surface to grind it up to bits. Continue along the aerial roots to grind those as well until the stump has been fully ground up.[15]
- Be careful not to get your feet in the way of the grinder. Wear heavy boots so you won't accidentally hurt yourself.
- Make sure children and pets are safely away from the equipment before you begin operating it.
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Shovel out the grindings and fill in the hole. Remove all of the wood chips and discard them (or use them as mulch), then fill in the hole with soil.[16]
- Use an ax to chop out any remaining roots.
Expert Q&A
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QuestionCan I kill a stump using herbicide?Andrew Carberry, MPHAndrew Carberry is a Food Systems Expert and the Senior Program Associate at the Wallace Center at Winrock International in Little Rock, Arkansas. He has worked in food systems since 2008 and has experience working on farm-to-school projects, food safety programs, and working with local and state coalitions in Arkansas. He is a graduate of the College of William and Mary and holds a Masters degree in public health and nutrition from the University of Tennessee.
Food Systems ExpertHerbicide would have to be applied just after the tree is cut down, before the wounds close up. Carefully paint herbicide on the stump, focusing on the outer rings/cambium layer. -
QuestionHow can I kill a tree stump that is close to a lake on my property?Andrew Carberry, MPHAndrew Carberry is a Food Systems Expert and the Senior Program Associate at the Wallace Center at Winrock International in Little Rock, Arkansas. He has worked in food systems since 2008 and has experience working on farm-to-school projects, food safety programs, and working with local and state coalitions in Arkansas. He is a graduate of the College of William and Mary and holds a Masters degree in public health and nutrition from the University of Tennessee.
Food Systems ExpertThe safest way to to do this would be to periodically cut back any growth on the stump. You wouldn't want to use kerosene so close to a lake. -
QuestionI planted a new tree next to the stump of the old tree. If I use epsom or rock salt on the stump, will it hurt the new tree?wikiHow Staff EditorThis answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
Staff AnswerwikiHow Staff EditorStaff AnswerNope! Epsom salts are safe for the surrounding plants, and will only kill the stump they are applied to.
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Tips
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Mix stains or dyes into herbicides before you apply them. Dyes or stains visibly indicate where you treated the stump, so you do not miss spots or over-treat the wood, thereby increasing the risk of exposure to other trees.Thanks
Warnings
- The World Health Organization considers glyphosate to be a probable human carcinogen. Check your local laws and use caution if handling this chemical.[17]Thanks
- Herbicides applied to the stump of one tree may pass to the other trees that have connected roots, such as aspen networks.[18]Thanks
- Even if tree roots are not grafted, they may release some of the herbicide into the soil through their root network.[19]Thanks
References
- ↑ https://ask2.extension.org/kb/faq.php?id=662103
- ↑ https://extension.okstate.edu/programs/gardening/grow-gardening-columns/grow-columns-2022/november-6-2022-stump-removal.html
- ↑ https://extension.okstate.edu/programs/gardening/grow-gardening-columns/grow-columns-2022/november-6-2022-stump-removal.html
- ↑ https://www.bobvila.com/articles/how-to-kill-tree-stumps/
- ↑ https://www.bobvila.com/articles/how-to-kill-tree-stumps/
- ↑ https://extension.okstate.edu/programs/gardening/grow-gardening-columns/grow-columns-2022/november-6-2022-stump-removal.html
- ↑ https://extension.illinois.edu/blogs/ilriverhort/2014-06-20-removing-tree-stumps
- ↑ https://www.bobvila.com/articles/how-to-kill-tree-stumps/
- ↑ https://todayshomeowner.com/lawn-garden/guides/how-to-kill-a-tree-stump/
- ↑ https://extension.okstate.edu/programs/gardening/grow-gardening-columns/grow-columns-2022/november-6-2022-stump-removal.html
- ↑ https://extension.illinois.edu/blogs/ilriverhort/2014-06-20-removing-tree-stumps
- ↑ https://hort.extension.wisc.edu/articles/using-wood-ash-in-the-home-garden/
- ↑ https://extension.illinois.edu/blogs/ilriverhort/2014-06-20-removing-tree-stumps
- ↑ https://extension.sdstate.edu/how-remove-stump
- ↑ https://ask2.extension.org/kb/faq.php?id=662103
- ↑ https://www.rhs.org.uk/plants/types/trees/stump-removal
- ↑ https://www.iarc.who.int/featured-news/media-centre-iarc-news-glyphosate/
- ↑ https://ask2.extension.org/kb/faq.php?id=662103
- ↑ https://ask2.extension.org/kb/faq.php?id=662103
About This Article
To kill a tree stump, start by drilling holes across the top of the stump that are at least 8 inches deep. Then, fill up the holes with Epsom salts or rock salts and seal them shut with melted candle wax. Once you've filled and sealed all of the holes, cover the stump with a plastic tarp or trash bag and wait at least 6 weeks for the stump to die. If you're in a rush to kill the stump, fill the holes with kerosene instead of salt and then build a fire on top of the stump. Once the entire stump has burned down, remove the ashes and fill in the leftover hole. For more tips from our Gardener reviewer, including how to chop the stump into pieces or shield it from the sun and let shade kill it for you, read on!
Reader Success Stories
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"Had a large tree removed from my yard, as its roots had caused a very expensive piping repair to my home. Unfortunately, I was left with an ugly stump and no idea how to get rid of it. Thank you for the information. Epsom and tarp is what I will try first."..." more