Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Zone 11b

In USDA zone 11b the coldest night of an average winter reaches 45 to 50 °F (7.2 to 10 °C). 16 ZIP codes (0.0% of all) are in this zone.

Zone11b45 to 50 °F
Coldest night7.2 to 10 °C
ZIP codes16
Typical last frost—
Typical first frost—

States with zone 11b

Florida11 ZIPsHawaii3 ZIPsPuerto Rico2 ZIPs

Cities mostly in zone 11b

Key West, FL3 ZIPs

← Zone 11a (colder)Zone 12a (warmer) →

Questions

What is the temperature range of zone 11b?

Zone 11b covers places where the coldest night of an average winter (the annual extreme minimum averaged over 1991–2020) is 45 to 50 °F, or 7.2 to 10 °C.

Which states have zone 11b?

Zone 11b occurs in 3 states; the most ZIP codes are in Florida, Hawaii, Puerto Rico.

What can I grow in zone 11b?

Perennials, shrubs and trees labeled hardy to zone 11b or a lower (colder) number should survive a typical winter. Annual vegetables depend on frost dates rather than zone.

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.