<p>The aim of this study was to quantitatively analyze heavy metals (HMs) in landscape and commercial lavender plants collected from five locations with varying traffic and industrial density. Furthermore, it was to investigate the pollution load distribution and bioaccumulation properties of lavender plants. Nine different indices were used to determine the bioaccumulation and biomonitoring properties of metals (As, Cd, Cr, Cu, Zn, Fe, Mn, Ni, and Pb) in plant organs, aromatic oil, and soil samples taken during the harvest period. Correlation, Principal Component Analysis (PCA), and Hierarchical Cluster Analysis (HCA) were performed to evaluate the pollutant sources of heavy metals and their relationships with each other.The results indicated that Cd (5.88-fold), Cr (3.7-fold), and Fe (3.65-fold) concentrations were observed in leaves and soil samples from locations with high organized industrial and vehicle density, exceeding the limit values recommended by the World Health Organization (WHO). PI &gt; 1 was found for f. stalk (Cu), leaves (Cd/Cu), roots (Mn/Cu/Zn/Ni), and soil (Cd/As). TF &lt; 1 was observed for Cd, Mn, Ni, and Pb, while TF &gt; 1 was observed for As, Cr, Cu, Zn, and Fe. BCF values showed that lavender exhibited good performance in transferring Mn, Ni, Cu, and Zn metals to the roots. Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) showed that especially Cr, Pb, Cu, and Cd may originate from industrial and vehicle emissions, while Zn, Fe, and As may be affected by both industrial and natural processes. This study showed that lavender plant is useful for whitewashing and metal bioaccumulation in organized industries and roadsides, and suitable for production purposes in pollution-free areas.</p> Graphical Abstract <p></p>