Hardiness Zone 12: 50 to 60 °F
Zone 12 covers places whose average annual extreme winter low falls between 50 and 60 °F (10 to 15.6 °C). The warmest lowlands of Puerto Rico and Hawaii, where frost is essentially unknown.
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5 photos Zone 12 Paradise Found
We bought this house "on the cliff" to remodel and sell, but after a cosmetic remodel, then a complete...
Zone 12 facts
| Full band | 50 to 60 °F (10 to 15.6 °C) |
|---|---|
| Zone 12a (colder half) | 50 to 55 °F |
| Zone 12b (warmer half) | 55 to 60 °F |
| Where it occurs | The warmest lowlands of Puerto Rico and Hawaii, where frost is essentially unknown. |
| Yards on YardShare tagged zone 12 | 3 |
Plants rated hardy to zone 12 should survive an average winter low in this band. Summer heat, rainfall, soil, and microclimates still decide the rest, and the full researched zone guide is being built for this page.
Data: 2023 USDA Plant Hardiness Zone Map (USDA and PRISM Climate Group, Oregon State University). Yard counts and photos are live from the YardShare archive; member-entered zone tags are shown as members set them.