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Tag Archives: Putnam County UT Extension Agent for Agriculture Wayne Key

Plant Hardiness Map Shifts UC, Putnam Specifically Into Warmer Zone

UC/Generic - Agriculture

For the first time in a decade the USDA updated its Plant Hardiness Map and it shows most of the Upper Cumberland has warmed up. Putnam County in particular went from a 7a zone to a 7b zone. This means the county’s average lowest temperatures over the last 30 years has raised from a 0-5 degree average to a 5-10 ... Read More »