The potential ofArundo donaxL. for phytoextraction of cadmium (Cd) from contaminated soil and water was probed. The plants were grown under greenhouse conditions in pots containing a nutrient solution or soil with increasing doses of Cd (0, 50, 100, 250, 500, 750, and 1000 μg L⁻¹) for 21 days. The growth and physiology of plants were evaluated at the end of the experiment. The maximum Cd content in root was 300 μg g⁻¹during hydroponics experiments over 230 μg g⁻¹in soil experiment. Cd concentration in stem was 262 μg g⁻¹at 750 μg L⁻¹supplied Cd in hydroponics over 191.2 μg g⁻¹at 1000 in soil experiment. The maximum Cd concentration in leaves from hydroponics was 187 μg g⁻¹. Relatively low Cd uptake occurred during soil experiment with low translocation factor (TF) values. Both Bioaccumulation Factor (BF) and TF values for hydroponics were greater than 1. The IC₅₀values of ABTS and DPPH showed that both time and increasing Cd concentrations affected the production of antioxidants with lower half maximal inhibitory concentration (IC₅₀) value on the 21st days.A. donaxshowed better potential for Cd remediation of aquatic environments.