In 2002, while the western United States was undergoing its severest drought in recorded history, home gardeners and professional landscapers alike turned to hardy native plants to replace their thirsty exotics. Xeriscaping-literally, dry landscaping--emerged from the shadows of traditional gardening to become the trendy if not dominant inspiration for garden design. In Requiem for a Lawnmower Sally and Andy Wasowski offer a timely manifesto on this...