Abstract Artemisia vulgaris was cultivated under subtropical Indo-gangetic plain conditions to determine the differences in the chemical composition of its essential oil produced from plants harvested at different growth periods using a combination of GC and GC/MS. The oil yield ranged from 0.1â0.5%. The leaf oil was found to be rich in 1,8-cineole (2.2â12.2%), Î±-thujone (0â11.4%), camphor (15.7â23.1%) and isoborneol (9.3â20.9%). The fruit oil contained Î±-thujone (15.5â16.0%) and artemisia alcohol (16.3â17.7%) as major components, while camphor (38.7%) predominated in the flower oil.