Rhode Island Planting Zones
Rhode Island runs from zone 6b to zone 7b on the 2023 USDA map. Zone 7a is the most common, covering 53% of the state's ZIP codes. Providence is 7a and Newport is 7a.
Zones across Rhode Island
| Zone | Average coldest night | Share of Rhode Island ZIP codes |
|---|---|---|
| 6b | −5 to 0°F | 45% |
| 7a | 0 to 5°F | 53% |
| 7b | 5 to 10°F | 1% |
Planting zone for every city and town in Rhode Island
Each Rhode Island town uses the ZIP code at its center. Big towns can cross into the next half-zone, so look up your own ZIP if you're near a line.
| City | Zone | Average coldest night |
|---|---|---|
| Central Falls | 7a | 0 to 5°F |
| Cranston | 7a | 0 to 5°F |
| East Providence | 7a | 0 to 5°F |
| Newport | 7a | 0 to 5°F |
| Pawtucket | 7a | 0 to 5°F |
| Providence | 7a | 0 to 5°F |
| Warwick | 7a | 0 to 5°F |
| Woonsocket | 6b | −5 to 0°F |
Source: USDA Plant Hardiness Zone Map, 2023, Agricultural Research Service, U.S. Department of Agriculture; ZIP code table from the PRISM Group, Oregon State University (accessed Oct 2026). This list is our own summary, not the official USDA map. See how we calculate.
Frequently asked questions
What planting zone is Rhode Island?
Rhode Island spans zones 6b to 7b on the 2023 USDA map, and zone 7a is the most common. Look up your ZIP code for your exact zone.
What zone is Providence, RI?
Providence is zone 7a, where the coldest night of an average winter falls from 0 to 5°F. Plants rated hardy to zone 7 or colder should survive a typical winter there.
More for Rhode Island: Rhode Island climate zones (insulation) · Last frost dates in Rhode Island · Frost line depth by state