Newnan, GA planting zone & frost dates
Newnan is in USDA hardiness zone 8a. The last spring frost usually comes around April 3 and the first fall frost around November 2, for a growing season of about 214 days.
Planting calendar for Newnan
Dates are counted from the average last spring frost (April 3) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.
| Crop | When |
|---|---|
| Tomatoes | Start seeds indoors: Feb 6 – Feb 20 Transplant outdoors: Apr 10 – Apr 17 |
| Peppers | Start seeds indoors: Jan 23 – Feb 6 Transplant outdoors: Apr 17 – Apr 24 |
| Eggplant | Start seeds indoors: Jan 23 – Feb 6 Transplant outdoors: Apr 17 – Apr 24 |
| Broccoli | Start seeds indoors: Jan 23 – Feb 6 Transplant outdoors: Mar 6 – Mar 20 |
| Cabbage | Start seeds indoors: Jan 23 – Feb 6 Transplant outdoors: Mar 6 – Mar 20 |
| Onions (sets) | Plant outdoors: Mar 6 – Mar 20 |
| Peas | Sow outdoors: Feb 20 – Mar 6 |
| Spinach | Sow outdoors: Feb 20 – Mar 6 |
| Lettuce | Sow outdoors: Mar 6 – Mar 20 |
| Carrots | Sow outdoors: Mar 6 – Mar 20 |
| Potatoes | Plant outdoors: Mar 6 – Mar 20 |
| Beans | Sow outdoors: Apr 10 – Apr 17 |
| Sweet corn | Sow outdoors: Apr 10 – Apr 17 |
| Cucumbers | Sow outdoors: Apr 10 – Apr 17 |
| Squash & zucchini | Sow outdoors: Apr 10 – Apr 17 |
| Basil | Start seeds indoors: Feb 20 – Mar 6 Transplant outdoors: Apr 10 – Apr 17 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 7 (8 weeks before the average first fall frost on Nov 2).
Useful for zone 8a gardens
- Seed starting kit with dome — to start seeds indoors before the last frost
- LED grow light for seedlings — stops leggy seedlings
- Frost cloth / plant covers — for late spring and early fall frosts
- Soil thermometer — warm-season crops need soil above 60°F
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Mar 16 | Apr 3 | Apr 18 |
| First 32°F frost in fall is before | Nov 18 | Nov 2 | Oct 22 |
How to read it: in spring there is a 10% chance of a frost after April 18, so that is a safe date for tender plants. In fall there is a 10% chance of frost before October 22. A hard freeze (28°F) usually ends around March 21.
Hardiness zone by ZIP code in Newnan
- 30263 zone 8a
- 30264 zone 8a
- 30265 zone 8a
- 30271 zone 8a
Nearby cities
- Peachtree City zone 8a, last frost Mar 26
- South Fulton zone 8a, last frost Mar 15
- Fairburn zone 8a, last frost Mar 15
- Union City zone 8a, last frost Mar 15
- Carrollton zone 8a, last frost Mar 28
- Fayetteville zone 8a, last frost Mar 25
- Villa Rica zone 8a, last frost Mar 28
- Douglasville zone 8a, last frost Mar 27
Questions
What growing zone is Newnan, GA?
Newnan is in USDA Plant Hardiness Zone 8a (average extreme winter low 10°F to 15°F), according to the USDA 2023 map.
When is the last frost in Newnan?
The average last spring frost (32°F) in Newnan is April 3. There is still a 10% chance of frost until April 18.
When can I plant tomatoes in Newnan?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Apr 10 – Apr 17. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Newnan 7 Wnw, GA (USC00096335), 10.9 km (6.8 mi) from the city center, elevation 242 m, based on 17 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.