8 Plants That May Help Discourage Household Pests
Some plants contain aromatic compounds that can repel or discourage certain insects, but they aren’t a reliable substitute for sealing entry points, removing food sources, or professional pest control. Evidence for plants keeping mice or spiders away is especially limited.
Here are eight commonly used options:
- 🌿 Mint — Its strong scent may discourage some insects. Keep it in containers because it spreads aggressively.
- 🌱 Lavender — Its fragrance can help deter some flying insects, although results vary.
- 🌼 Marigolds — Often planted around gardens to discourage certain pests; their effectiveness against household pests is inconsistent.
- 🌿 Basil — Its aromatic oils may have insect-repellent properties, particularly against some flies and mosquitoes.
- 🌿 Rosemary — Its strong fragrance may discourage some insects; it can be grown in pots near outdoor sitting areas.
- 🌿 Lemongrass — Contains citronellal and related compounds associated with mosquito repellency. Simply having the plant nearby isn’t equivalent to using a tested mosquito repellent.
- 🌿 Catnip — Contains nepetalactone, which has demonstrated insect-repellent activity in research. Keep in mind that it can attract cats.
- 🌿 Sage — Its aromatic compounds may help discourage some insects, especially when the leaves are used appropriately outdoors.
🐭 What about mice and spiders?
This is where viral “pest-repelling plant” claims tend to go too far. Planting peppermint or lavender isn’t a dependable way to eliminate a mouse or spider infestation.
For mice, the most effective measures are sealing holes and gaps, removing accessible food, and using appropriate traps. For spiders, reducing insects around the home, sealing entry points, and keeping clutter down are generally more useful.
For mosquitoes, eliminate standing water around the property and use a proven repellent when necessary.
If you tell me which pest you’re trying to get rid of—mice, mosquitoes, spiders, ants, cockroaches, or flies—I can give you the most effective plant-based and non-chemical options for that specific pest.
