Lavender essential oil has been used by our ancestors as an alternative medicine for a long time ago. The lavender essential oil compounds, are mainly influenced by the variety which is chosen to be cultivated and the environmental factors, the quality of these oils is influenced by the quantity of linalool, linalyl acetate and camphor. The volatile oil of this genus has been confirmed to have therapeutic, medicinal properties and it is declared one of the most known essential oils in aromatherapy. The essential oil of the lavender is starting to also have uses in the food industry, in the ecological protection of plants, against pest and diseases. The aim of the study was to compare the essential oil of two lavender cultivars, in two years of experience (2015 and 2016), the dry matter of essential oil varied from 4.03% to 5.96% at Common lavender and from 4.69% to 5.64% at Blue scent hybrid. Regarding cultural interaction between year and cultivar, 2015 registered the highest values regardless of cultivar, being a favorable year. More accurate reporting and data analysis are needed, therefore, the evolution of the correlation line that indicates the link between the two parameters was followed in this paper.