Several plants are widely reported to help repel mosquitoes thanks to their strong essential‑oil scents, though they work best as part of a broader strategy (eliminating standing water, using screens, etc.).

Top mosquito‑repelling plants

  • Citronella grass / lemongrass – Releases a citrusy oil (citronella) that mosquitoes dislike; often used in candles and lotions as well.
  • Lavender – Its fragrance deters mosquitoes and many other insects while also attracting pollinators like bees.
  • Marigolds – Contain pyrethrum‑like compounds that naturally repel several insects, including mosquitoes.
  • Basil – Strong‑scented herb; planting it near windows, patios, or outdoor seating can help keep mosquitoes away.
  • Rosemary – Woody, aromatic herb whose oils (such as eucalyptol and camphor) have insect‑repellent properties.
  • Catnip – Contains nepetalactone, which studies suggest can be more effective at repelling mosquitoes than some synthetic repellents.
  • Peppermint and mint relatives – The sharp menthol scent both repels mosquitoes and can double as a culinary herb.
  • Scented geraniums (citronella‑scented) – Certain pelargonium varieties emit a lemony or “citronella” odor that masks human‑skin cues mosquitoes use to find bites.

How effective are they really?

  • Most of these plants work best when physically disturbed (crushed leaves, brushed‑against, or dried and burned), which releases more oils into the air.
  • They generally reduce mosquito activity in localized areas (around a patio or entryway) but usually won’t fully protect a large yard or replace DEET‑type sprays in high‑risk regions.

Quick‑scoop placement tips

  • Plant near doorways, windows, patios, and decks to create a “zone of scent” around where you spend time outdoors.
  • Combine with containers or pots so you can move them seasonally and keep them in full sun, where their oils are strongest.

If you tell me your climate (e.g., hot‑humid vs. cooler temperate), I can suggest a short list of 3–5 easy‑to‑grow mosquito‑repelling plants tailored to your region.