Citronella
Appearance
Citronella (Cymbopogon nardus) is a perennial grass, with a blue-green colour and lemon-scented leaves. It can grow up to 1.5 metres in height.
Citronella is cultivated in Sri Lanka, India, Burma, and Indonesia. It is related to lemon grass which is used in cooking.
It is also used to deter mosquitos.