USDA hardiness zone 13a
In zone 13a the average coldest winter night reaches 60°F to 65°F. Plants labeled for zone 13 (or a colder zone) can survive the winter outdoors here. 1 U.S. cities with 10,000+ residents are in this zone.
| City | State | Zone | Avg. last frost | Avg. first frost |
|---|---|---|---|---|
| Kailua-Kona | HI | 13a | rare | rare |