California: Andrea Cochran 

On a two-and-a-half acre landscape in Geyserville, California, Andrea Cochran found that compatibility was key. “Although not all of the plants are native to California, they are native to the Mediterranean and arid regions with similar climates,” she says. Lomandra— an Australian herb—flanks a Cor-Ten steel staircase and a walkway lined with Yosemite tan pebbles and concrete.  Photo 3 of 12 in Landscape Design for All Climates