Abstract The essential oil was obtained by hydrodistillation from the herb of Agastache foeniculum Pursh. cultivated in Iran. The oil content was 1.87% w/w based on dry weight. The oil was analyzed by capillary GC and GC/MS. Forty-six components were identified. Methyl chavicol constituted 87.5% of the oil. Other major components were limonene (2.4%), 1,8-cineole (2.0%) and globulol (1.4%).