Cobb County, Georgia
Local growing conditions for Cobb County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 19 ZIP codes in our data.
Hardiness zones in Cobb County
Cobb County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Cobb County for its live forecast, frost dates, and planting calendar:
Marietta 30008
Fair Oaks 30060
Marietta 30062
Marietta 30064
Marietta 30066
Marietta 30067
Sandy Springs 30068
Smyrna 30080
Smyrna 30082
Marietta 30090
Acworth 30101
Austell 30106
Austell 30111
Mableton 30126
Powder Springs 30127
Kennesaw State University 30144
Kennesaw 30152
Mableton 30168
Vinings 30339
More for Georgia
- Agriculture in Georgia
- Frost dates across Georgia
- 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.