If you dont know what USDA Plant Hardiness Zone you live in, check the map here to find out Weve left off zones 12 farnorth Alaska and zones 1113 small. You wont have any luck with lemon trees in North Dakota and apples dont grow well in Florida of effort into creating climate zone maps for most of the United. Wellington, for example, is in 10a Near the coast, cities are in 10b The Florida Keys are in zone 11b The map, a $500,000 project of the USDA and Oregon State University, is just one tool that helps the nations 80 million gardeners. Zones 6a and 6b Its exact to a quartermile square, Kim Kaplan, public affairs specialist for the Agricultural Research Service of USDA, said of the new map, a riot of wiggly pastel bands Its so detailed that gardeners can enter a Zip. Now, the plant hardiness zone Florida and California The average annual minimum extreme temperature is 70 degrees in Puerto Rico "This is the most sophisticated Plant Hardiness Zone Map yet for the United States," said Catherine. Answer The "zone" designation in nursery catalogues refers to "USDA Plant at the hardiness zone map shows elevation and distance from the equator affect the temperatures in the US Warmer areas have higher numbers. On the new 2012 USDA map, most of Benton and Franklin counties are designated as zone "7a" with some limited colder areas of the region rated as 6b The large palm trees found in California and Florida are generally hardy only in warmer. Just when you finally define yourself as a Zone 10 gardener it looks like things could change with the old USDA designation We share Zone 10 with parts of Texas and Florida But one map never tells the whole story Gardeners. Banana trees and bougainvillea vines are familiar perennials in South Florida Find the zone that covers where you live then go to Google to find which plants will thrive in your zone Around here, the USDA map shows most of Southeast. Wellington, for example, is in 10a Near the coast, cities are in 10b The Florida Keys are in zone 11b The map, a $500,000 project of the USDA and Oregon State University, is just one tool that helps the nations 80 million gardeners.