Martin County, Florida
Local growing conditions for Martin County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 9 ZIP codes in our data.
Hardiness zones in Martin County
Martin County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Martin County for its live forecast, frost dates, and planting calendar:
Indiantown 33438
Hobe Sound 33455
Jupiter Island 33469
Indiantown 34956
Port St. Lucie 34957
Palm City 34990
Stuart 34994
Sewall's Point 34996
Palm City 34997
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.