Before dawn one morning in October 2016, renowned New York-based floral designer Lewis Miller stealthily arranged hundreds of brightly colored dahlias, carnations, and mums into a psychedelic halo around the John Lennon memorial in Central Park. The spontaneous floral installation was Miller's gift to the city—an effort to spark joy during a difficult time. Five years and more than ninety Flower Flashes later, these elaborate flower bombs—bursts of jubilant blooms in trash cans, over bus canopies, on construction sites and traffic medians—have brought moments of delight and wonder to countless New Yorkers and flower lovers everywhere and earned Miller a following of dedicated fans and the nickname "the Flower Bandit."