A herbicide composition for controlling weeds in non-agricultural areas. The composition comprises an aqueous infusion of the natural henna plant at a concentration of 14 to 18%, expressed in weight percent relative to the total weight of the composition, at least one non-ionic surfactant. The composition further comprises the following ingredients: 40 to 50% of at least one terpene oxide; 5 to 9% of at least one monoterpenol; and 4 to 8% of at least one monoterpene, such that the weight percentage of the solid natural henna used for the infusion is at least 2%.