For the first time, a detailed look at two California gardens that were pivotal in defining mid-20th-century landscape design in the United States: Thomas Church's 1948 Donnell garden in Sonoma, California, and Garrett Eckbo's 1959 ALCOA Forecast garden in Los Angeles. Church's brilliant integration of indoor-outdoor living and Eckbo's imaginative use of new materials like aluminum left nostalgia behind and created America's new backyard. From the Environmental Design Archive at the University of California, Berkeley.