The results have revealed significant differences among clones. The clones most effective in accumulating all five metals were S. viminalis ‘1154’ and ‘1054’. The studied Salix population was significantly diverse as regards accumulation efficiency. The differences between the highest and lowest heavy metal content in extreme clones were for: Cd 84 % , Cu 90 % , Hg 167 % , Pb 190 % and Zn 36 % . At the same time, significant differences were observed in Salix structure. The greatest cellulose content was observed in S. viminalis ‘Sprint’ (49.69 % ) and the lowest in S. viminalis ‘1059’ (42.09 % ).