Official 2012 USDA Plant Hardiness Zone Map

Climate Source is the exclusive public distributor of digital GIS versions of the U.S. Department of Agriculture’s Official 2012 Plant Hardiness Zone Map (PHZM) for the Conterminous United States, Alaska, Hawaii, and Puerto Rico.

Click here to learn about our 2012 PHZM GIS Datasets

Climate Source also offers applications that allow users to access the PHZM data in convenient ways that do not require specialized software.

Click here to learn about our multiple ZIP code lookup application
Plant Hardiness App for the iPhone