Landscape with fly-repelling plants. Flies are deterred by the scents of some plants, so keep potted plants on your patio or near your doors that repel flies: False indigo Mint Lavender Elderberry Basil
6 Fragrant Herbs & Plants That Repel Flies - The pungent oil of Citronella grass (Cymbopogon nardus) is probably the most well-known herbal insect-repellent on the market. A type of Lemongrass, C. nardus is best grown in a controlled environment as it is also considered an invasive species. Unlike the subtle Lemongrass herb used in many Asian cuisines, Citronella grass is too strong to be palatable and should not be used in cooking.