Nowadays, there is an extended effort to reduce the amount of chemical pesticides and introduce new natural biopesticides for sustainable use in agriculture. A wide range of natural fungicides have been employed in both traditional and sustainable agriculture to suppress soil-borne pathogens. Such shift in agricultural practice can assist the transition from linear to circular economy regarding plant production. In this work, the phytoprotective properties of Lavandula dentata extracts against a major fungal pathogen of tomato were examined in vitro and in planta. In particular, the beneficial effects of lavender extract against the soil-borne pathogen Fusarium oxysporum f.sp. radicis-lycopersici were uncovered.