6 Plants That Naturally Repel Bugs

Here are 6 powerful plants that naturally repel bugs—perfect for your garden, patio, or even indoor spaces. These plants work by emitting scents that insects hate, reducing the need for chemical sprays.

Table of Contents

1. Lavender

Repels: Mosquitoes, flies, moths, fleas
Why it works: Its strong floral fragrance (from linalool) is pleasant to humans but deters pests.
How to use: Plant near doorways or rub leaves on skin for a natural repellent.

2. Basil

Repels: Mosquitoes, houseflies, thrips
Why it works: Contains eugenol, a natural insect deterrent.
How to use: Grow in pots near windows or crush leaves to release oils.

3. Mint (Peppermint/Spearmint)

Repels: Ants, spiders, mosquitoes, mice
Why it works: The potent menthol smell overwhelms pests.
How to use: Plant around foundations (it’s invasive, so use containers!).

4. Marigolds

Repels: Aphids, mosquitoes, nematodes (soil pests)
Why it works: Pyrethrum compounds mimic common insecticide ingredients.
How to use: Plant near tomatoes or cucumbers as a “trap crop.”

5. Rosemary

Repels: Mosquitoes, carrot flies, cabbage moths
Why it works: Its woody scent masks attractants for pests.
How to use: Toss sprigs on grill smoke to keep mosquitoes away.

6. Citronella Grass (NOT citronella-scented plants)

Repels: Mosquitoes
Why it works: Contains citronellal, the oil used in bug sprays.
How to use: Crush leaves or grow in large pots near seating areas.

Bonus Tips for Maximum Effect

Crush leaves occasionally to release more oils.

Plant near entry points (doors, windows, garden borders).
Combine with other methods (like fans for mosquitoes).

These plants are low-maintenance, chemical-free, and pretty—triple win! 🌿🐜🚫

Did you know? A study found lemongrass reduces mosquitoes by up to 62% when planted densely (Journal of Pest Science, 2018).