USDA hardiness zone 11b

In zone 11b the average coldest winter night reaches 45°F to 50°F. Plants labeled for zone 11 (or a colder zone) can survive the winter outdoors here. 2 U.S. cities with 10,000+ residents are in this zone.

CityStateZoneAvg. last frostAvg. first frost
Key WestFL11brarerare
Key LargoFL11brarerare