If you are looking for the best candles to keep spiders away, start here: lemon, the scent most often recommended online, showed no repellent effect when researchers tested it on live spiders. Citrus sits near the top of almost every natural spider repellent list. That one result explains why a lemon candle by the back door can burn for a month while the same web keeps coming back above it.
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You have probably tried the obvious fix already. Maybe a peppermint spray along the windowsills or a citrus plug-in in the hallway, and the spiders were back within the week. That fix fails for two reasons most guides skip: what a spider actually senses, and what keeps it in your room once it gets in. Once those two make sense, choosing from the mint and herbal scents in our pure beeswax candle collection becomes a simple question of which scent goes in which room.
Why the lemon candle by the back door never had a chance
The study behind that lemon result was published in the Journal of Economic Entomology under the title Natural Compounds as Spider Repellents: Fact or Myth? The researchers ran choice tests. A spider is placed in a space with a treated zone and an untreated zone, and the team records where it chooses to stay.
Lemon oil made no meaningful difference. The spiders settled near the lemon about as often as they settled in the clean zone. Mint oil gave a different result, at least for some of the species tested.
Brown widows and European garden spiders steered clear of the mint zone. False widows, a close relative, barely seemed to notice it. So the folklore was half right. A strong smell can push some spiders away, but only certain smells and only for certain spiders.
Lemon smells sharp and clean to you. To a spider, it seems to register as nothing worth avoiding. To see why mint works where lemon falls flat, you have to look at how a spider senses the world, starting at its feet.
A spider tastes the room with its legs, which changes what a scent has to do
Spiders have no nose. They pick up smell and taste through sensory organs on their legs, including fine hairs that respond to chemicals in the air and on surfaces. Every step a spider takes is also a test of what it is walking on.
Strong menthol-type vapors, the cooling compounds in peppermint and other mints, seem to overload those receptors. A zone heavy with mint becomes unpleasant to cross, so the spider moves on and builds somewhere else. Lemon oil is made mostly of different compounds, and in testing it did not produce that reaction.
That mechanism also sets the limits. The effect is strongest close to the source, where the vapor is densest. It works as a local barrier across one stretch of floor or one corner, and it fades as the air moves.
Think about the corner where your spider keeps showing up. For a lot of people it is the gap between the bookshelf and the living room window, where a web reappears every few days no matter how often you sweep it down. If you want mint in that room, our Sunday Reset beeswax candle opens on cold peppermint and eucalyptus. Its full notes are Peppermint, Clove, Cedar, Patchouli, Vanilla, Eucalyptus.
We cannot verify that any candle, ours included, keeps spiders out of a room, and we will not assert it. What a candle can do is keep a mint scent steady in a room you are already working on. Why that room still has spiders is the bigger question, and it has four answers.
Four reasons your fix stopped working, ranked from the one you already checked to the one nobody checks
These run in that order on purpose. The first is the one most people catch on their own. The last matters most, and it almost never shows up on spider repellent lists.
1. The scent was citrus
If your plug-in or candle leaned on lemon or orange, the research suggests it was doing very little. Swapping citrus for mint is the easiest change on this list. It is also the one most people make first, which is why it is rarely the whole answer.
2. Your spider does not mind mint
Species react differently. In the study, false widows were largely indifferent to mint oil, even though close relatives avoided it. If the spider in your corner belongs to a species that shrugs off mint, sealing and clearing the room has to carry the load there.
3. The spider already lived there
Repellents discourage a spider from settling in a new spot. They do not evict one that has already built a web and found food. If the web was up before the mint arrived, the web and the spider have to go first, by hand or by vacuum.
4. The spider came for food
This is the one nobody checks. Spiders follow prey. A room with fruit flies near the fruit bowl or gnats around a damp corner has a steady food supply, and that draws spiders in faster than any scent can push them out.
Insects come in through gaps and gather where it is damp. Outdoor lights near a door draw flying insects at night, and spiders build nearby to catch them. Fix the food supply, and the scent finally has a chance to matter.
So what is the best candle to keep spiders away?
You have probably worked it out by now. The best candle to keep spiders away is a mint-forward candle, burned often, in a room you have already made a poor place for spiders to live. The candle is the last step in the plan, and it works best when the steps before it are done.
Mint earns its spot because it is the one scent with real testing behind it. Peppermint and spearmint both carry that cooling, menthol-family character. Citrus can stay in your rotation for how it smells, but leave it off this job.
Burning often matters because the effect is short-range and fades quickly once the air moves. A spray dries and loses its strength within days. A candle you light most evenings brings the scent back every time you strike a match.
The wax matters too. A candle you burn that often in a closed room should leave nothing behind but scent. We will come back to that after the steps.
Make the room a poor place to live, then light the candle
Work through these in order. Each one removes a reason for a spider to stay, and the candle comes in once the room is ready.
- Clear every web and egg sac. Vacuum the corners, window frames, the backs of shelves, and the floor under furniture. Empty the vacuum outside so nothing crawls back in.
- Seal the way in. Check door sweeps and window screens, then look at the gaps where pipes and cables enter the wall. Caulk small cracks, since spiders and the insects they eat use the same openings.
- Dry out damp spots. Basements and the cabinet under the sink hold moisture that draws insects. The EPA guide to mold and moisture in your home covers how to find the source and fix it.
- Cut the food supply. Keep fruit in the refrigerator or a covered bowl. Take trash out at night. Move outdoor lights away from doors, or switch them off when you do not need them.
- Clear the clutter in corners. Stacks of boxes and piles of paper give spiders quiet places to settle. Fewer hiding spots means fewer webs.
- Light the mint candle in that room. Burn it regularly in the room you just cleared, and keep the door closed while it burns so the scent stays where you want it. Never leave a lit candle in an empty room.
Where to set the candle once the room is ready
Place it within a few feet of the corner where the webs kept coming back, since the effect is strongest close to the source. Use a flat, heat-safe surface away from curtains and shelves above. A low side table near a window or doorway usually works well, because those are the spots spiders use to come in.
Once the room is clear and the candle has a home, the question is which mint goes where. That depends on which room the spiders favor.
Which mint belongs in which room
Picture the kitchen late at night. The fruit bowl drew fruit flies last week, and a thin web is tucked behind the pipes under the sink. Kitchens feed spiders, which is why they turn up there so often.
For that room, our Slice of Life beeswax candle is the one we would light. Its notes are Spearmint, Eucalyptus, Tomato Leaf, Anise, Mint. Two kinds of mint lead it, with a green snap from the tomato leaf, and it smells like fresh herbs pulled from a kitchen garden.
That green, herbal character sits well next to cooking. It matters in a room where you are also making dinner, because the mint stays pleasant instead of fighting the food.
Sunday Reset belongs in the living room or the entryway. Its peppermint and eucalyptus open cold and sharp, then the clove and cedar warm the room as it burns. It reads clean and fresh in a space where you sit for the evening.
"my roommate and I own 6/8 of the scents! They smell up a WHOLE room during the burn & even a while after blowing them out."
Paige, MBur customer
A scent that fills the whole room and lingers after the flame goes out is what this job needs. The mint has to reach the corner where the web was, a few feet from the table where the candle sits.
Why the wax matters for a candle you burn most nights
A candle with a job gets lit far more often than a decorative one. That makes the wax and the fragrance inside it count for more than usual.
Paraffin, the wax in most mass-market candles, starts as crude oil. Refiners turn that oil into fuels and lubricants, and paraffin is the waxy residue left at the end of the process. It is petroleum waste, and it tends to leave black soot on jar rims and nearby walls as it burns.
Many candles also use toxic fragrances containing phthalates, chemicals added to help a scent last longer. If you are burning a candle most evenings in a closed room, those are the ingredients to skip.
Beeswax is a single natural ingredient made by honeybees, and it has the highest melting point of any common candle wax. That high melting point is why it burns slowly, and why the 12 oz size runs 80+ hours. Every MBur candle is 100% beeswax with a wooden wick, phthalate-free fragrance, and no chemical dye, hand poured in New York City.
But what if you have pets, or the spider came back anyway?
These are the questions people ask once the plan is in place. Each one comes down to which room and how you burn the candle.
"I have a cat or a dog."
Take this one seriously. Peppermint and eucalyptus oils can be harmful to cats and dogs when inhaled or absorbed, and cats tend to be the more sensitive of the two. The same caution makes sense with any mint-forward candle, ours included.
Burn the candle in a room your pet can leave, with a window cracked, and keep it well out of reach. A home office or laundry room is often the right fit, since pets spend less time there. If your pet has breathing trouble or you are unsure, follow your vet's guidance before you burn a mint scent near them.
"I saw a spider the day after I lit it."
That usually points back to the list above. The spider was probably there before the candle, or the room is still feeding it. Go back through the steps, and keep the candle going in the cleared room for a few weeks before you judge the results.
"The scent fades as soon as I open a window."
Moving air carries scent away fast, for any candle and any spray. That is the reason a candle suits this job: you relight it, and the mint comes back each time. For a room you light most evenings, the two wooden wicks on the 12 oz size build a wide melt pool quickly, so the scent spreads through the room sooner.
Questions people ask about candles and spiders
Do peppermint candles actually keep spiders away?
Mint has the best evidence of any natural scent, and some species avoided mint oil in controlled tests. A candle works as a short-range barrier in one room, and it will not move a spider that has already settled. Pair a mint candle like Sunday Reset, which opens on peppermint and eucalyptus, with the cleanup steps above.
What scents do spiders hate the most?
Mint is the one with solid testing behind it. Eucalyptus and tea tree are often listed too, with less research to back them. Lemon showed no effect in testing, so skip citrus for this job. For the kitchen, Slice of Life pairs spearmint and mint with eucalyptus.
Do citronella candles repel spiders?
Citronella is used mainly against flying insects like mosquitoes, and there is little evidence it affects spiders. Indoors, a mint scent is the better match for a spider problem. In the living room, that means a candle like our Sunday Reset beeswax candle, lit near the corner that keeps collecting webs.
How long should I burn a mint candle in a room with spiders?
On the first burn, let the melted wax reach the edge of the jar so the candle burns evenly for the rest of its life. After that, burn it most evenings for up to about four hours at a time, and trim the wooden wick short before you relight. The Slice of Life candle fits a kitchen routine, because you can light it while you cook and blow it out after dinner.
The candle to light in the room where spiders keep showing up
Lemon does not keep spiders away, and mint helps only with some species, over a short range, in a room that has stopped feeding them. Clear the webs and seal the gaps first. Then a mint candle burned most evenings keeps that cleared room full of the one scent with real evidence behind it.
For the living room or entryway, pick the 12 oz Sunday Reset ($65), with two wooden wicks and 80+ hours of burn time. The peppermint and eucalyptus open cold and clean, then the clove and cedar settle the room into something warm for the evening. It is the candle that makes a room you just cleared feel finished, and the one you will want to light every night where the webs used to be.
As customer Eboni Ellis put it, "Everything from this company is amazing." Autumn is when most people start seeing spiders indoors, so set up the room and light the candle before the season turns.
Get the 80-hour Sunday Reset beeswax candle for your living room, because it is the candle you will light every evening in the room you just cleared.
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