8 Plants That May Help Discourage Mice, Spiders & Insects

Some strongly scented plants may discourage certain pests, particularly around patios, windows, doors, or gardens. But plants alone usually won’t eliminate an established infestation.

1. Peppermint 🌿 — Its strong scent may discourage some insects and rodents.

2. Lavender 💜 — Its fragrance is unpleasant to some moths and other insects.

3. Rosemary 🌱 — Aromatic foliage may help deter certain insects when grown around outdoor areas.

4. Basil 🌿 — Its strong aroma may help discourage some flying insects.

5. Mint 🌿 — The scent can be unpleasant to various insects; keep it in a pot because it spreads aggressively.

6. Marigolds 🌼 — Commonly planted around vegetable gardens because their scent and chemicals may affect some pests.

7. Lemongrass 🌾 — Contains citronellal and related aromatic compounds and can be useful as part of mosquito-management efforts.

8. Catnip 🌿 — Contains nepetalactone, a compound that has demonstrated insect-repellent activity.

The important part

Don’t rely on plants as your main mouse or insect-control strategy. For mice, sealing holes, removing food sources, and keeping garbage securely contained are much more effective. For insects, reducing standing water, repairing screens, sealing cracks, and maintaining be careful with plant choices if cleanliness can make a much bigger difference.

And be careful with plant choices if you have pets: some plants can be toxic to cats or dogs.

Bottom line: Think of these plants as a supplementary deterrent, not a guaranteed pest-control solution.