That tree stump in the backyard is hiding a root system that can extend 20 feet in every direction, which is why ripping it out with a chain and a pickup truck almost never works. Easy stump removal means picking the right method for the stump size, your timeline, and your tolerance for either chemicals or rented equipment. There are four approaches that genuinely work, and the rest are myths or marketing. This guide breaks them down honestly.
Method 1: Epsom Salt Decomposition
The cheapest and most patient method. Magnesium sulfate (Epsom salt) draws moisture out of the wood and accelerates fungal decay. The stump rots in place over 6 to 12 months and crumbles when you hit it with a shovel.
The procedure is simple. Drill 1-inch diameter holes 8 to 10 inches deep across the top of the stump, spaced 2 inches apart. Pack each hole tight with Epsom salt. Pour water over the stump to dissolve the top layer, then cover with a tarp to retain moisture and prevent rain from washing salt out. Refresh the salt every 4 to 6 weeks.
Costs run about $15 in Epsom salt for a medium stump. Best for stumps under 18 inches diameter and homeowners who can wait through one growing season.
Method 2: Chemical Stump Killers
Faster than Epsom salt and more aggressive. Potassium nitrate (KNO3) is the active ingredient in most products, sold as Spectracide Stump Remover, Bonide Stump-Out, and similar brands at $8 to $15 a bottle.
Drill the same hole pattern as the salt method. Pour granules into each hole, add water to dissolve. After 4 to 6 weeks, the wood becomes spongy and soft. Pour kerosene or fuel oil into the holes and ignite to burn out the softened wood. Burn over a cleared area away from anything flammable.
This method works in 2 to 3 months total. The fire step is the limiting factor; check local burn ordinances before lighting up. Many suburban areas prohibit open burning year-round.
Method 3: Stump Grinder Rental
By far the fastest method. A stump grinder is a gas-powered machine with a rotating cutting wheel that chews through wood at roughly 6 inches per pass. Home Depot, Sunbelt, and United Rentals all stock self-propelled grinders for $130 to $250 per day.
Plan a half day for a single 24-inch stump. The grinder reduces the stump to a pile of wood chips and grinds 4 to 6 inches below grade, which is enough for grass to cover the spot. The chips can be left in place to decompose or hauled away.
Three safety notes: wear eye and ear protection, keep bystanders 50 feet away, and watch for buried rocks that can damage the cutting wheel. Hitting a horseshoe-sized stone usually voids the rental damage waiver.
Method 4: Manual Digging and Cutting
Brute force, but it works for small stumps under 8 inches diameter. Dig a trench around the stump 2 feet deep, exposing the major root flares. Cut roots with a sharp axe, reciprocating saw with a pruning blade, or a mattock. Once the main roots are severed, lever the stump out with a long pry bar or a 4×4 fulcrum.
This is the cheapest method (free if you own the tools) but the most physically demanding. Budget 4 to 8 hours of hard labor per stump. It is the right choice for one or two small stumps where renting equipment is overkill.
Methods That Do Not Work Reliably
Several internet remedies waste time or money. Pouring rock salt or table salt usually fails because the concentration needed to kill the stump also poisons surrounding soil for years. Bleach is similarly ineffective and environmentally harmful.
Drilling holes and pouring diesel without first softening the wood produces a smoky, smoldering fire that does not burn the stump out. Diesel works only after the chemical or salt step has weakened the wood structure.
Burying the stump under soil sometimes works for very small specimens but more often grows mushrooms and attracts termites that can move toward the house.
Choosing the Right Method
- Have time, no budget: Epsom salt
- Need it gone in 60 days, no budget: chemical killer plus burn
- Need it gone today: rent a grinder
- One small stump, weekend warrior: dig and cut
- Multiple large stumps: hire an arborist with a self-propelled grinder, $150-$400 per stump
A professional arborist can grind out three 24-inch stumps in an afternoon for the same effective per-stump price as a DIY rental, and you skip the equipment learning curve.
Site Cleanup After Removal
Wood chips left from grinding should be raked into a pile and either composted, used as path mulch, or hauled to a yard waste facility. Do not till them into garden beds; fresh wood chips lock up nitrogen as they decompose.
Fill the depression with topsoil, tamp firmly, and seed or sod. Expect a slight subsidence over 6 to 12 months as the underground root system decomposes. Top up with fresh soil as needed to keep the spot level.
Preventing Stump Sprouts
Some species, including poplar, willow, and certain maples, sprout aggressively from cut stumps. Apply a brush killer like Tordon RTU or Bayer Brush Killer Plus to the freshly cut surface within 30 minutes of cutting. The herbicide travels into the root system and prevents regrowth without affecting nearby plants if applied carefully.
Frequently Asked Questions
What is the cheapest way to remove a tree stump?
Epsom salt at about $15 per stump, plus patience. The method takes 6 to 12 months but requires no equipment rental and minimal labor.
How long does it take to grind a stump?
A homeowner-rental grinder handles a 24-inch stump in 30 to 60 minutes. Professional arborists with larger machines can do the same job in 10 to 15 minutes.
Will the tree grow back from the stump?
Some species sprout aggressively, including silver maple, willow, poplar, and elm. Treat the cut surface with a brush herbicide immediately after removal to prevent regrowth.
Can I plant a new tree where the old stump was?
Wait at least 12 months for residual roots to decompose, then dig a planting hole at least 6 feet from the original stump location. The decomposing wood depletes nitrogen and creates competition for new tree roots.
