Polk County, Florida
Local growing conditions for Polk County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 40 ZIP codes in our data.
Hardiness zones in Polk County
Polk County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Polk County for its live forecast, frost dates, and planting calendar:
Crystal Lake 33801
Lakeland 33803
Lakeland 33805
Lakeland 33809
Kathleen 33810
Lakeland 33811
Highland City 33812
Lakeland Highlands 33813
Lakeland 33815
Auburndale 33823
Babson Park 33827
Bartow 33830
Bradley Junction 33835
Loughman 33837
Dundee 33838
Eagle Lake 33839
Lakeland 33840
Fort Meade 33841
Frostproof 33843
Haines City 33844
Bartow 33847
Crystal Springs 33849
Lake Alfred 33850
Lake Hamilton 33851
More for Florida
- Agriculture in Florida
- Frost dates across Florida
- 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.