Natural Defenders: 12 Plants That Repel Mosquitoes 1. Lemongrass A popular ingredient in Asian cuisine, lemongrass contains citronella, a natural oil widely used in mosquito repellents. Its strong lemony scent masks human Rose 'Norita' Bush Form Hello Hello Plants Philodendron Ring of Fire Olive Hill Greenhouses Houseplant Focus Series Hoya aka wax plants get their name because their leaves (and flowers!) look like they've been dipped in candle wax. Some blooms legit look fake. The flowers can smell Photinia Leaf Spot Walter Reeves: The Georgia Gardener