A cage protects the roots of a pond plant planted in a pot from fish and other animals. If the roots are eaten, the plant will die. The pot has a rim and the pot resides on the bottom of a pond. The pond plant has a plurality of stems and each stem has a leaf. The cage covers the top of the pot so that the fish cannot gain access to the roots. In one embodiment the cage includes two sections that are connected together and to the rim of the pot. In another embodiment the cage is a single piece. In both embodiments the leaves of the pond plant are rolled up and passed upwardly through a grid of the cage.