Mosquito Repellent plants Non GMO Citronella Geranium- Two large live plants are the perfect choice to fill out corners and empty spots. Plant does require a sunny spot, but not a lot of water. The "mosquito plant", a heavenly scented geranium, has natural citronella oil that mosquitoes hate. Bye, Bye, Bad Bugs! Leaves can be steeped in tea for a lemony flavor or candied and used as cake decorations. Also, great for cut flower arrangements!