citronella grass

Citronella grass, scientifically known as Cymbopogon nardus and Cymbopogon winterianus, is a perennial tropical grass native to Sri Lanka and southern India. It belongs to the Poaceae family and grows in dense tufts of long, narrow, blade-like leaves that emit a distinctly lemon-like aroma when crushed. The plant produces essential oil with a citral content (geranial and neral compounds) that gives it its characteristic fresh, lemony scent and slightly bitter taste. Citronella grass is closely related to lemongrass (Cymbopogon citratus), though it contains higher concentrations of geraniol and is traditionally used more for its insect-repellent properties than culinary applications, though it has a history of use in Asian and Caribbean cuisine.

In terms of physical characteristics, the plant reaches heights of 1-2 meters, with fine, rigid leaves that can be harvested year-round in tropical climates. The essential oil is typically extracted through steam distillation and appears as a pale yellow liquid with a complex, slightly woody undertone beneath the primary citrus notes.

Citronella grass is used sparingly in culinary applications compared to its more common relative lemongrass, though it appears in some traditional Asian and Caribbean recipes. The fresh leaves may be steeped to create infusions or tea, imparting a subtle lemony, slightly peppery flavor. In some Southeast Asian cuisines, particularly in Indonesia and parts of southern India, it is incorporated into curries, stews, and aromatic preparations for its unique flavor profile. The leaves are sometimes used in marinades for fish and poultry, where their citral compounds help tenderize and flavor the meat. Citronella grass is more commonly dried and used in herbal infusions or as a seasoning component in spice blends, though culinary use remains secondary to its widespread application as an insect repellent in traditional remedies and modern products.