Johnson County, Indiana
Local growing conditions for Johnson 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 Johnson County
Johnson County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Johnson County for its live forecast, frost dates, and planting calendar:
Franklin 46131
Bargersville 46106
Greenwood 46142
Greenwood 46143
Needham 46162
Trafalgar 46181
Whiteland 46184
More for Indiana
- Agriculture in Indiana
- Frost dates across Indiana
- 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.