Sumner County, Tennessee
Local growing conditions for Sumner County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 7 ZIP codes in our data.
Hardiness zones in Sumner County
Sumner County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Sumner County for its live forecast, frost dates, and planting calendar:
Bransford 37022
Castalian Springs 37031
Walnut Grove 37048
Gallatin 37066
Hendersonville 37075
Portland 37148
Westmoreland 37186
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.