Lemna gibba was tested to bioaccumulation of boron (B) from irrigation water. L. gibba was capable of removing 19–63% B depending upon inflow concentration. B was removed from aqueous solution following pseudo second order kinetic model. Langmuir isotherm model better fitted equilibrium obtained for B phytoremediation. L. gibba uptake 2088 mg kg−1 B at average inflow B concentration 17.39 mg L−1.