Abstract The chemical compositions of the essential oils of Tagetes patula leaf, capitula and total above ground herb collected from Farrukhnagar (28Â°N, 76Â°E), Haryana, India were subjected to analysis by GC and GC/MS. The major constituents of the oils were limonene (6.2â13.6%), (Z)-(3-ocimene (0.3â8.3%), dihydrotagetone (4.5â8.1%), terpinolene (0â11.2%), p-cymen-8-ol (3.4â11.0%), piperitone (6.1â11.9%), piperitenone (2.7â8.1%), Î²-caryophyllene (2.3â8.0%) and trans-sesquisabinene hydrate (2.0â12.5%). Key Word Index: Tagetes patula Asteraceaeessential oil compositionlimonene(Z)-Î²-ocimenedihydrotagetoneterpinolenep-cymen-8-olpiperitone trans-sesquisabinene hydrate