8 Plants That May Help Discourage Mice, Spiders & Insects 🌿
Some strongly scented plants contain compounds that can discourage particular pests, but it’s important not to expect a plant to create a pest-proof home. Evidence is stronger for certain plant extracts and essential oils than for simply growing the plant nearby. PubMed Central (PMC)+1
-
Peppermint — Its strong aroma may discourage some insects and rodents.
-
Lavender — Fragrant compounds may help deter certain insects.
-
Rosemary — Aromatic oils have shown repellent activity against several pests.
-
Basil — Its fragrance may help discourage some flying insects.
-
Marigolds — Some varieties and extracts have insect-repellent properties, although results vary.
-
Lemongrass — Contains aromatic compounds associated with mosquito-repellent effects.
-
Catnip — Contains nepetalactone, a compound with demonstrated mosquito-repellent activity.
-
Chrysanthemums (pyrethrum varieties) — Certain chrysanthemums contain pyrethrins, natural insecticides used in pest-control products. Simply planting ordinary chrysanthemums, however, isn’t equivalent to applying an insecticide. The Spruce
What about mice and spiders?
For an established mouse problem, plants alone are unlikely to solve it. Sealing holes and gaps, storing food securely, and removing accessible food sources are much more dependable.
Likewise, planting something to “repel spiders” isn’t guaranteed. Reducing the insects that spiders feed on and sealing entry points can be more effective. thesun.co.uk
Bottom line: These plants can be useful additions to a garden, but think of them as one layer of pest management, not a substitute for sanitation, exclusion, or appropriate pest control.
