Key Largo, FL planting zone & frost dates
Key Largo is in USDA hardiness zone 11b. Frost is rare here: in most years temperatures do not drop to 32°F.
Useful for zone 11b gardens
- Drip irrigation kit — saves water in long, hot seasons
- Shade cloth — protects plants from midday sun
- Soil moisture meter
- Plants for zone 11
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Hardiness zone by ZIP code in Key Largo
- 33037 zone 11a
Nearby cities
- Florida City zone 10b
- Homestead zone 10b
- Leisure City zone 11a
- Naranja zone 11a
- Princeton zone 11a
- Goulds zone 11a
- Lakes by the Bay zone 11a
- Cutler Bay zone 11a
Questions
What growing zone is Key Largo, FL?
Key Largo is in USDA Plant Hardiness Zone 11b (average extreme winter low 45°F to 50°F), according to the USDA 2023 map. Some ZIP codes of the city fall in zone 11a.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Tavernier, FL (USC00088841), 11.6 km (7.2 mi) from the city center, elevation 2 m, based on 16 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.