Smith County, Tennessee
Local growing conditions for Smith County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 9 ZIP codes in our data.
Hardiness zones in Smith County
Smith County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Smith County for its live forecast, frost dates, and planting calendar:
Carthage 37030
Hartsville/Trousdale County 37145
Hartsville/Trousdale County 37151
Gordonsville 38547
Gordonsville 38552
Gordonsville 38560
South Carthage 38563
Hickman 38567
Gordonsville 38569
More for Tennessee
- Agriculture in Tennessee
- Frost dates across Tennessee
- USDA hardiness zones explained
- Planting calendar by ZIP code
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.