Us Gardening Zones

This webpage was originally based on the 1990 usda hardiness zone map which is one of several maps developed to provide this critical climate information.
Us gardening zones. Considered the standard measure of plant hardiness the usda plant hardiness zone map is based on average annual minimum winter temperatures. Planting zones or growing zones are illustrated on a map known as the usda plant hardiness zone map. Usda plant hardiness zone map.
Department of agriculture usda agricultural research service ars and is available on their website. The us department of agriculture divided out the map of the us in areas which range from planting zone 1a to planting zone 13b. Click on the map to display a pop up window with the plant hardiness zone average temperature and temperature range.
Understanding the usda planting zones you live in can mean the difference between success and failure in your garden. The 2012 usda plant hardiness zone map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. This zone features minimum average temperatures of 40 to 30 degrees f.
A hardiness zone is a geographic area defined to encompass a certain range of climatic conditions relevant to plant growth and survival. It has been adapted by and to other countries. These are areas which range in minimum temperatures from 60 degrees fahrenheit to 70 degrees fahrenheit.
The map is divided into thirteen distinct 10ºf zones which are further divided into sub zones of 5 f. To pan and zoom use your mouse and scroll wheel the arrow keys on your keyboard or the zoom slider on the left side of your map. Plant hardiness zone 3 is found throughout alaska the northern portions of the united states and in high altitude areas.
The 2012 usda plant hardiness zone map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is produced by the u s. The map is based on the average.