Citronella grass is a perennial aromatic grass grown mainly as the source of citronella oil, a popular insect repellent. It needs full sun, warmth and regular water, and it can spread aggressively in open land.
Family
Poaceae (Grass family)
Grows as
Grass, Perennial
Light
Full sun
Water
Keep soil evenly moist during the growing season and reduce watering in cooler or drier periods.
Soil
Well-drained, fertile garden soil or loam.
Temperature
20–35 °C; protect below 5 °C
How easy
Easy
Safety
Not known to be toxic
Native range
South Sudan to S. Africa and Indo-China
Climate
seasonally dry tropical
About
Cymbopogon nardus, common name citronella grass, is a species of perennial aromatic plant from the family Poaceae, originating in tropical Asia. C. nardus cannot be eaten because of its unpalatable nature and is an invasive species that renders pastureland useless, since cattle will starve even in its abundance.
It is the source of an essential oil known as citronella oil, which is widely used for its natural insect-repelling properties. Essential oils are extracted from the aerial parts and applied topically or slowly burned (e.g. in a "citronella candle") as an insect repellent, particularly to deter haematophagous insects such as mosquitoes.
Text excerpted from the Wikipedia article Cymbopogon nardus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.