The most effective way to keep scorpions away naturally is to eliminate what draws them to your property in the first place: shelter, moisture, and prey insects. No single trick solves a scorpion problem on its own, but layering several natural strategies together can dramatically reduce how many scorpions show up around (and inside) your home.
Seal Entry Points Around Your Home
Scorpions can squeeze through surprisingly small gaps. The striped bark scorpion, one of the most common species in the southern U.S., is nocturnal and actively explores gaps and cracks after dark. That means any opening where building materials meet, where utility lines penetrate walls, or where the foundation meets the siding is a potential entry point.
Key areas to inspect and seal include:
- Weep holes along brick veneer (use mesh screens designed for weep holes rather than caulk, so moisture can still escape)
- Gaps around pipes, wires, and conduit where they pass through exterior walls
- Door sweeps and thresholds, especially on garage doors
- Cracks in the foundation or stucco
- Window frames with visible daylight around the edges
Silicone caulk works well for most small cracks. For larger gaps, copper mesh stuffed into the opening and sealed over with caulk creates a durable barrier. Walk the perimeter of your home at least twice a year and reseal anything that’s cracked or pulled away.
Clean Up the Yard
Scorpions spend their days hiding in cool, dark, slightly damp spots. Your yard is full of them if you’re not careful. Clemson Cooperative Extension identifies lumber piles, stacked bricks, brush, and general yard debris as prime scorpion harborage. Ornamental ground covers like large decorative stones, bark, and thick mulch also give scorpions exactly the shelter they’re looking for.
Here’s what makes the biggest difference outdoors:
- Store firewood off the ground and keep it dry, ideally at least 20 feet from the house
- Remove unnecessary rocks and decorative stone piles near the foundation
- Swap wood mulch for small gravel in beds directly adjacent to your home
- Clear brush, leaf litter, and trash regularly, since these also attract roaches and crickets that scorpions prey on
- Trim vegetation so branches and leaves don’t touch exterior walls or create shaded ground-level hiding spots
The goal isn’t a barren yard. It’s creating a dry, open buffer zone between your landscaping and your home’s foundation. Even a two-to-three-foot gravel border makes a meaningful difference.
Reduce Moisture Around the Foundation
Scorpions need water, and they’re drawn to areas where moisture collects. Fix plumbing leaks promptly, make sure air conditioning units drain away from the house, and grade the soil around your foundation so rainwater flows outward rather than pooling against the walls. If you have a damp basement, running a dehumidifier removes one more reason for scorpions to settle in.
Overwatering your lawn or garden beds right next to the house is a common but overlooked attractant. If you use irrigation, aim sprinkler heads away from the foundation and water earlier in the day so the soil dries before nightfall, when scorpions become active.
Switch Your Outdoor Lighting
Scorpions themselves aren’t attracted to light, but their food is. Standard white outdoor bulbs emit across the full visible spectrum, including the blue and ultraviolet wavelengths that flying insects are most sensitive to. Swapping those bulbs for yellow or amber “bug light” bulbs dramatically cuts down on the insects gathering around your porch, patio, and entry doors.
Yellow bug bulbs emit light in the 570 to 590 nanometer range, which falls outside the peak sensitivity zone of most flying insects. The bugs can still technically see yellow light, but it appears much dimmer to them compared to white or blue light of the same intensity. Fewer insects around your home means less food for scorpions, which means fewer scorpions hanging around waiting for dinner. LED versions of these bulbs last longer and use less energy than the old incandescent yellow bulbs.
If possible, move outdoor lights away from doors entirely. A light mounted on a post 15 to 20 feet from the house draws insects (and the scorpions that hunt them) away from your entry points rather than right to them.
Essential Oil Sprays as Repellents
Cedarwood essential oil is the standout natural repellent for scorpions. Many people in scorpion-heavy areas swear by it, and cedarwood oil is known to be toxic to a range of arthropods on contact. A simple spray of 25 drops of cedarwood oil in a cup of water, applied around window frames, door thresholds, and foundation cracks, creates a barrier scorpions avoid.
For a more potent blend, combine 2 cups of water with 20 drops of cedarwood oil, 20 drops of lavender oil, 10 drops of lemon oil, 10 drops of wild orange oil, and 5 drops of cinnamon oil. Shake well before each use and spray along entry points, baseboards, and any cracks you’ve identified. Reapply every few days, since the oils lose potency as they evaporate. Rain washes outdoor applications away, so you’ll need to reapply after storms.
Essential oils work best as a supplement to physical exclusion and yard cleanup, not a replacement. They won’t solve a serious scorpion problem on their own, but they add another layer of deterrence at the specific spots where scorpions try to enter.
Diatomaceous Earth Along Entry Points
Food-grade diatomaceous earth is a fine powder made from fossilized algae. It kills scorpions and insects not through poison but through a physical mechanism: the microscopic sharp edges scratch the waxy outer layer of the exoskeleton, causing the animal to lose moisture and dehydrate. It remains effective indefinitely as long as it stays dry and undisturbed.
Dust a thin line of food-grade diatomaceous earth along baseboards, in cracks, around door frames, and in any gap where scorpions might travel. A little goes a long way. You want a barely visible film, not a thick pile (scorpions will simply walk around a heavy mound). In outdoor applications, it needs to be reapplied after rain or heavy dew since moisture renders it useless. Keep it out of areas with heavy foot traffic where it’ll get kicked up and scattered. While it’s not toxic, breathing in the fine dust can irritate your lungs, so wear a simple dust mask when applying it.
Detect and Monitor With UV Light and Traps
You can’t fix a problem you can’t see. Scorpions glow bright green under ultraviolet light, which makes nighttime inspections surprisingly easy and even a little satisfying. A 365nm UV flashlight produces the strongest, cleanest glow and works noticeably better than cheaper 395nm models. Walk the perimeter of your home after dark, keeping the beam low along the ground and where walls meet the floor. Move slowly, pause at corners and thresholds, and never reach bare-handed toward a glowing scorpion.
Glue traps are useful for ongoing monitoring, but placement matters enormously. Scorpions travel along edges and walls, a behavior called thigmotaxis, so a trap sitting in the middle of an open floor catches nothing. Place traps flush against baseboards, tucked into corners, behind doors, along the garage-to-house transition, and around bathroom and laundry room perimeters. Plan on two to four traps per room. Write the date on each one and replace it every three to four weeks, sooner if it gets dusty or full. Checking your traps regularly also tells you which areas of your home are most active, so you can focus your sealing and repellent efforts where they’ll do the most good.
Chickens as Natural Predators
If you keep backyard chickens or have been considering them, they do eat scorpions. A study published in the Journal of Venomous Animals and Toxins tested domestic hens against yellow scorpions under controlled conditions and found that some hens ate up to six scorpions within minutes. The hens showed brief aversive reactions when stung during the process, but none died or showed atypical behavior even 30 days later. Removing the stinger eliminated the aversive reactions entirely.
Chickens won’t patrol your house at night, so they’re not a complete solution. But free-ranging chickens in your yard during the day can reduce the local scorpion population over time, along with eating the crickets, roaches, and other insects that scorpions feed on. Cats are also known to hunt scorpions, though they’re more vulnerable to stings than chickens are.
Putting It All Together
No single natural method eliminates scorpions completely. The people who have the most success combine several strategies at once: sealing entry points, maintaining a dry gravel buffer around the foundation, swapping to yellow outdoor lights, applying cedarwood oil at thresholds, dusting diatomaceous earth in cracks, and monitoring with UV light and traps to track progress. Each layer removes another reason for scorpions to visit, and together they make your home a place scorpions simply pass by rather than move into.