My Usda Growing Zone

The usda plant hardiness zone map divides the united states and canada into 13 zones, based on the average annual minimum winter temperature. The usda (united states department of agriculture) has kept temperature records for decades and published the first recommended growing zone map in 1960. You can find your planting zone with our interactive map above, which is based on the data from usda plant hardiness map of 2012.

Plant hardiness is very important to growing success. Find your growing zone by reviewing the usda plant hardiness zone interactive map. Usda unveils new plant hardiness zone map by kim kaplan january 25, 2012 washington—the u.s.

Over time they have changed a bit as temperatures have gotten warmer and the maps have updated.

The maps are based on extreme minimum temperatures to typical high temperatures. Enter your zip code in the search bar and click enter. The map is produced by the u.s. However, it's important to note they do not account for extreme maximum temperatures, so some plants may struggle.