Citronella (Cymbopogon nardus) is a versatile herb that belongs to the grass family. It is commonly used as a natural insect repellent due to its strong and refreshing aroma. Citronella is also popularly used in aromatherapy and as a supplement to relieve stress, anxiety, and depression. Moreover, this herb may help cure various respiratory and digestive problems. It is a must-have herb in your garden or kitchen for its numerous health benefits.