Deconstruct SunHardiness Zone 11b: Temperature, States & Cities
In USDA zone 11b, the coldest night of a typical winter falls between 45 and 50 °F (7.2 to 10.0 °C).
average annual extreme minimum
Where is zone 11b?
On the 2023 USDA map, zone 11b appears in Hawaii, Florida.
Cities in zone 11b
Gardening in zone 11b
Pick perennials, shrubs and trees labeled for zone 11b or a lower number. Then match the light: every plant tag also lists full sun, part sun or shade, and that depends on the exact spot, not the zone.
Check your zone
Zone checked. Now measure the sun.
Deconstruct Sun shows how many hours of direct sun one exact spot gets, today and in every season. Free on iPhone.
Questions
What is the temperature range for zone 11b?
In zone 11b, the average coldest winter night is 45 to 50 °F (7.2 to 10.0 °C). That is the average of each year’s lowest temperature from 1991 to 2020.
What is the difference between zone 11b and 11a?
Both are part of zone 11. The “a” half is 5 °F colder than the “b” half. Zone 11a averages 40 to 45 °F and zone 11b averages 45 to 50 °F.
Can I grow zone 12a plants in zone 11b?
A plant rated for a warmer zone may survive a mild winter, but one hard freeze can kill it. Choose plants rated for your zone or colder for permanent plantings, and treat warmer-zone plants as annuals or grow them in pots you can move.
This is not the official USDA Plant Hardiness Zone Map. Zones are derived from the official 2023 dataset, resampled to about 2 km.