Maintaining a home free of unwanted critters like mosquitoes, flies, ants, and other insects can be challenging. While chemical repellents are common, many people also turn to plants and strong natural aromas as part of their pest-control routine. Certain plants contain compounds that insects may find unpleasant, while also adding color and fragrance to your home or garden.

Mint is one popular choice because of its strong aroma, and peppermint oil has been studied for repellent effects against some insects. Lavender is another fragrant option commonly associated with discouraging moths, mosquitoes, and other insects. Chrysanthemums are especially interesting because some species contain compounds called pyrethrins, which have insecticidal properties and are used in certain commercial pest-control products. But those are only the beginning. Several familiar herbs and garden plants are commonly recommended for similar reasons—and you might already have some growing around your home.