Western Garden Book Zones. Of 24 climate zones defined in the sunset western garden book and the 20 zones defined by the united states department of agriculture (usda), california has 20 and 16, respectively. The usda plant hardiness map divides north america into 11 hardiness zones.
Of 24 climate zones defined in the sunset western garden book and the 20 zones defined by the united states department of agriculture (usda), california has 20 and 16, respectively. These are often called sunset zones after the. Sunset's climate zones are based on winter minimum temperatures, but also include other factors such as summer high temperatures, length of growing season, humidity, and rainfall.
For mo re information on sunset magazine’s climate zone map system, visit sunset’s website or buy the the new western garden book:
Corp., menlo park, calif.), the western u.s. The new western garden book ultimate gardening guide by planting an earth day garden consider climate s new normal how to find your canadian plant hardiness zone empress of dirt Western gardeners know this book as their gardening bible. Summers are hot and dry;