Strong-willed, unconventional, and extremely wealthy, Rachel "Bunny" Mellon was always going to stand out in a crowd. A world-class art collector, Mellon also collected people, with her friends including Jackie Kennedy, Hubert de Givenchy, and I.M. Pei. More importantly, Mellon was a visionary gardener and landscape designer, creating the White House Rose Garden and the Kennedy grave site at Arlington National Cemetery. Here Mellon's friend Mac Griswold constructs a portrait of a very private woman who was complex and gifted.