Posts Tagged ‘usda plant database zones’

Today’s USDA Plant Hardiness Zone Map and How to Use It

Plant Hardiness Zone Map-300x190 in  and gardeningtipsBefore you plant the first seed in your flat or plan your garden, you will need to check the USDA Plant Hardiness Zone Map.  This is a crucial step that many gardeners skip because they do not know how to use the map or do not understand the information on the map.

Past USDA Plant Hardiness Zone Maps have been divided into 10 categories.  These categories were separated by 10 degrees.  This 10-degree margin represents the average minimum winter temperature of an area.    These margins are then divided into areas labeled “a and b.”  These areas are separated by 5 degrees and add more climatic detail to a region.

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