Citronella shows up regularly in mosquito repellent candles and sprays. Also known as Cymbopogon nardus, the beach grass-style plant contains an oil that repels mosquitoes.
Lemongrass looks a lot like citronella, but they’re different plants. Research has found that lemongrass oil to can provide protection from some types of mosquitoes for up to 2.5 hours.
Catnip is a big hit with the feline crowd, but it may help prevent mosquitoes from invading your space, too. Research has found that catnip oil can help repel several Aedes and Culex mosquito species.
Sage is one of the few plants that has research to suggest it can actually keep mosquitoes away. One study found that just one pot of sage can give up to 32% protection from some types of mosquitoes.
Research has found that lime basil, aka Ocimum americanum or hoary basil, offers up to 40% protection from certain forms of mosquitoes when it sits out in a pot.
Mint is a useful herb to have around your place, given that you can also eat it. Peppermint oil is used in some commercial bug repellents to ward off mosquitoes.
A range of marigolds have been linked to keeping mosquitoes away. The plants contain a compound called pyrethrin which shows up in some bug repellents.
Lavender gives off a unique scent that many people find soothing. Luckily, mosquitoes don’t. Research has found that the scent of lavender can repel mosquitoes (and some other bugs).