Deconstruct SunTennessee Hardiness Zones
Tennessee covers USDA plant hardiness zones 7a to 8a on the 2023 map, so its coldest areas average 0 to 5 °F on the coldest winter night. Find your zone by ZIP code, or pick a city below for its zone, sunrise and daylight by month.
Tennessee hardiness zone map
This is not the official USDA Plant Hardiness Zone Map. Zones are derived from the official 2023 dataset, resampled to about 2 km. Dots mark cities with their own page.
Source: USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture, planthardiness.ars.usda.gov. Underlying data © PRISM Group, Oregon State University, prism.oregonstate.edu, accessed 2026-08-30.
Zones and daylight by city
| City | Zone | Coldest night | Longest day | Shortest day |
|---|---|---|---|---|
| Nashville | 7b | 5 to 10 °F | 14h 37m | 9h 42m |
| Memphis | 8a | 10 to 15 °F | 14h 31m | 9h 48m |
| Knoxville | 7b | 5 to 10 °F | 14h 36m | 9h 43m |
| Chattanooga | 8a | 10 to 15 °F | 14h 31m | 9h 48m |
| Clarksville | 7b | 5 to 10 °F | 14h 40m | 9h 40m |
| Murfreesboro | 7b | 5 to 10 °F | 14h 36m | 9h 44m |
| Franklin | 7b | 5 to 10 °F | 14h 36m | 9h 43m |
| Johnson City | 7b | 5 to 10 °F | 14h 38m | 9h 41m |
| Jackson | 7b | 5 to 10 °F | 14h 35m | 9h 45m |
Gardening in Tennessee?
Your zone says what survives winter. Deconstruct Sun measures how many hours of direct sun your exact spot gets, so you can pick plants that thrive. Free on iPhone.
Questions
What hardiness zones are in Tennessee?
Tennessee spans USDA zones 7a to 8a on the 2023 map. Among its larger cities, Nashville is coldest (zone 7b) and Memphis is warmest (zone 8a).
How do I find my exact zone in Tennessee?
Enter your ZIP code in the hardiness zone lookup on this site. It reads the 2023 USDA data for that ZIP and warns you if you are near a zone boundary.
How much sun do gardens in Tennessee get?
In Nashville, an open spot gets up to 14.6 hours of daylight in June but only 9.7 in December. Trees and buildings cut that down, especially in winter. The Deconstruct Sun app measures the real direct-sun hours for one exact spot.