Blue Earth County, Minnesota
Local growing conditions for Blue Earth County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 12 ZIP codes in our data.
Hardiness zones in Blue Earth County
Blue Earth County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Blue Earth County for its live forecast, frost dates, and planting calendar:
Mankato 56001
Amboy 56010
Eagle Lake 56024
Garden City 56034
Good Thunder 56037
Lake Crystal 56055
Madison Lake 56063
Mapleton 56065
Minnesota Lake 56068
Pemberton 56078
St. Clair 56080
Vernon Center 56090
More for Minnesota
- Agriculture in Minnesota
- Frost dates across Minnesota
- 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.