At the entrance to the Conservatory of the Two Sisters is the garden's collection of aquatics. This pond holds a variety of tropical and hardy water lilies and other aquatics from late March to Fall.
The pool is unfiltered. Submerged plants help to keep the water clean while fish eat any mosquito larvae. Each of the plants in the pond is planted in plastic pots raised off the pond's floor to six to eight inches below the water surface. In the keyhole of the pond is Undine, (1935) a sculpture by Rose Marie Huth.
The pond is flanked by four formal rose beds holding several varieties of modern roses.