Named for its circular boundary, this garden features a central dancing fountain with two intimate secret gardens off to each side. A central promenade invites strolling and close-up views of the cutting-edge plant combinations.

A living kaleidoscope of seasonal color begins with the earliest and brightest of spring bulbs coupled with their cool-season companions and ends in a spectacular October finale, with towers of mums enhancing the hot-season annual plants.

Trees, shrubs, and perennials are also part of the garden, providing an attractive backdrop to the changing display of showy annuals, and extending the beauty of the garden through winter.