Planting zones map by state
Scroll down to find the map you are interested in or begin by clicking on a location in the map to access maps for that area. The label will identify the zones in the US. These zones are based on the average minimum temperatures in different regions of the US ranging from Zone 1a -60 to -55 F to Zone 13b 65 to 70 F. -60 to -50 o F. Simply open the map click on the state of Ohio and zoom in on your general location.
Planting zones map by state The map is based on the average annual minimum winter temperature divided into 10-degree F zones.
USDA Unveils New Plant Hardiness Zone Map By Kim Kaplan January 25 2012 WASHINGTONThe US. The two distinct climates of Maryland lend a hand in giving the state six planting zones. The coldest hardiness zone in America planting zone 1 has an average low temperature of -60 degrees Fahrenheit. The map is based on average annual minimum winter temperatures of each region and divided into thirteen distinct 10ºF zones which are further divided into sub-zones of 5F. The USDA plant hardiness zone map is the standard by which gardeners can determine which plants are most likely to thrive in a specific location.