A Hardiness Zone is a geographically defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand the minimum temperatures of the zone. First developed for the United States by the Department of Agriculture (...
ThePlant Hardiness Zone Mapis based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones ranging from zone 1 (coldest) to zone 13 (warmest), the USDA notes. Colors on the map like red, orange, yellow, green, and blue, describe the plant's hardiness zo...
Advertisements Click on the USDA hardiness zone that you wish to explore further. You can also browse flowering plants byScientific Name,Common Name,Genus,Family, orOrigin. Zone 1a: from −60 °F (−51.1 °C) to −55 °F (−48.3 °C) ...
The USDA Plant Hardiness Map.Presents the 2003 updates to the United States Department of Agriculture Hardiness Map. Warmer zones for gardeners; New zones for subtropical regions; Compatibility of the map with the American Horticultural Society's Plant Heat Zone map.Ellis...
A Hardiness Zone is a geographically defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand the minimum temperatures of the zone. First developed for the United States by the Department of Agriculture (...