How to Get Rid of Ants Naturally: What Works and What Does Not

The best thing to get rid of ants naturally is a combination of food control, sealed entry points, soapy water for the trail and a slow sugar bait that workers carry home. Natural sprays and scents only deal with ants you can see; lasting results come from cutting off food and reaching the colony.

What “Natural” Ant Control Really Means

Natural ant control means getting rid of ants without synthetic insecticides. It covers three kinds of tools: changes to the home that take away food and entry points, physical killers such as soapy water and diatomaceous earth, and mineral or plant-based ingredients such as borax and peppermint oil.

Natural does not automatically mean harmless or effective. Borax is a natural mineral, but it still needs to be kept away from children and pets, and peppermint oil is plant-based but toxic to cats. Meanwhile many kitchen remedies shared online, from cinnamon to coffee grounds, have no good evidence that they work at all.

The useful question is what each method actually does to the colony. UC IPM advice on managing ants around the home starts with cleaning, sealing and baiting rather than spraying, and that order works just as well for a natural approach.

Why Ants Keep Coming Back

The ants on your counter are foragers from a colony that usually nests outdoors or inside a wall. When a forager finds food, it lays a scent trail that recruits more workers, which is why one crumb can turn into a line of ants within an hour.

Killing the foragers does not affect the nest, which simply sends more. That explains the common experience with natural sprays: the counter looks clear tonight and the trail is back by morning. Lasting control needs one of two things, removing what they come for or getting something into the nest that shrinks the colony.

Natural Ant Remedies Compared

Here is how the common natural options stack up, from the ones that change the outcome to the ones that only feel productive. The deciding question for each is whether it reaches the colony or only the ants in front of you.

Only two items reach the root of the problem: food and entry control, which removes the reason ants come in, and a slow borate sugar bait, which reaches the nest. Our guide to homemade ant killers that work indoors covers the bait recipe in detail, and the homemade ant killers section gathers the sprays and pet-safe options.

The Natural Methods That Work

Five natural methods make a real difference, and they work best together rather than one at a time.

• Food and water control: store sugar, honey, cereal and pet food in sealed containers, wipe up spills and grease, take out the trash and fix leaking taps. Ants come for food and moisture, and a clean kitchen makes any bait you set the best meal around.
• Sealing entry points: follow the trail to the gap it uses, often along a window frame, pipe or baseboard, and caulk it. UC IPM notes that petroleum jelly can plug a crack temporarily until you can caulk it properly.
• Soapy water: wiping or spraying the trail with soapy water kills the ants it soaks and removes the scent trail, so fewer workers follow. It is fast and safe, but it has no lasting effect.
• Slow sugar baits with borax or boric acid: a weak bait lets workers carry the borate home and share it with the colony, including the queens. It is the slowest method, often a week or more before ants thin out, but it is the only natural one that reaches the nest.
• Diatomaceous earth: a thin dusting in cracks dries out ants that walk through it while it stays dry. It works as a barrier in gaps, not as a colony killer.

Natural Remedies That Disappoint

Vinegar, lemon juice, cinnamon, cayenne, coffee grounds, chalk and baking soda all appear on lists of natural ant killers. Some of them wipe away a scent trail like any cleaner, and ants may walk around a fresh line of powder, but none of them reaches the nest, and we found no reliable evidence that any keeps ants out for long.

Essential oil sprays sit in between. UC IPM notes that plant oils such as peppermint, clove and orange have contact activity but little lasting effect, so they kill ants they hit and then fade. They also bring a real risk for cats, which are sensitive to many essential oils.

These remedies are not harmful to try on a counter, but relying on them alone usually means weeks of wiping the same trail. Pair any of them with food control and a bait if you want the ants gone.

A Natural Plan for Indoors and Outside

Indoors, the order matters: wipe the trail with soapy water, clear the food that drew the ants, set a weak sugar bait in a closed jar beside the entry point, and seal the gap once the ants stop using it. Expect fewer ants within about a week and full control over several weeks.

Outside, natural control is about limits. UC IPM calls eliminating ants outdoors unrealistic and points out that ants also eat pests such as fleas and termites, so the goal is to keep them from coming in. Bait along the foundation, trim plants and mulch back from the walls, and fix sprinklers that keep the soil wet against the house.

Common Questions About Getting Rid of Ants Naturally

Key Takeaways

Ants keep coming because a colony keeps sending foragers to a reliable meal. Natural control succeeds when it takes that meal away and gets something into the nest; it fails when it only removes the workers you happen to see.

Vinegar, cinnamon, coffee grounds and similar remedies may move ants around but rarely solve anything, and essential oils carry a risk for cats. If ants are still trailing after two weeks of cleaning and baiting, or they are nesting in wood, it is time for a store-bought bait or a professional inspection.

Tonight, clear the counter, wipe the trail with soapy water and note where the ants come in.