Monty Don travels across the western United States to discover how desert, glamour, technology, forests, and frontier spirit shape its gardens. From Arizona’s cacti and Palm Springs modernism to Beverly Hills, LA school gardens, Lotusland, California redwoods, Seattle’s plant collections, Amazon’s Spheres, and Bloedel Reserve, he explores gardens that are bold, strange, beautiful, and deeply personal. By the end of the journey, Monty finds that there is no single American garden, only a vast landscape of imagination, showmanship, and possibility.