Some 20 years ago I had the chance of a lifetime to meet Roberto Burle Marx in Louisville, Kentucky. Late in his six-decade career (he died in 1994), he was there to discuss designing a botanic garden that never would come to fruition. I was a student of horticulture and had no real idea who he was or the magnitude of his importance to landscape architecture. He was gracious and solicitous of my studies and interests—and even invited me to visit him in Brazil. Too bad I never took advantage of that invitation.