6. Citrus
One of the most commonly used snake-repelling scents is citrus. Citrus fruits like lemons, oranges, and grapefruits contain a chemical called limonene, which is a natural snake repellent. Limonene is a monoterpene – a type of aromatic hydrocarbon – that registers as overwhelming and disorienting to snakes when the concentration is high enough to saturate the area around Jacobson’s organ.
You can boil citrus peels in water for 15 to 20 minutes, allow the mixture to cool, pour it into a spray bottle, and apply the spray around garden beds, porches, and entry points. You can also simply scatter fresh citrus peels around problem areas, or rub citrus zest directly onto fence posts or door frames. The smell won’t linger as long as an essential oil spray, so think of peels as a daily refresh option. Lemon, orange, and lime all work, and you can rotate them to keep the scent environment varied and unpredictable for any snake checking your perimeter.