Brunswick, GA planting zone & frost dates
Brunswick is in USDA hardiness zone 9a. The last spring frost usually comes around February 8 and the first fall frost around December 25, for a growing season of about 314 days.
Planting calendar for Brunswick
Dates are counted from the average last spring frost (February 8) 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: Dec 14 – Dec 28 Transplant outdoors: Feb 15 – Feb 22 |
| Peppers | Start seeds indoors: Nov 30 – Dec 14 Transplant outdoors: Feb 22 – Mar 1 |
| Eggplant | Start seeds indoors: Nov 30 – Dec 14 Transplant outdoors: Feb 22 – Mar 1 |
| Broccoli | Start seeds indoors: Nov 30 – Dec 14 Transplant outdoors: Jan 11 – Jan 25 |
| Cabbage | Start seeds indoors: Nov 30 – Dec 14 Transplant outdoors: Jan 11 – Jan 25 |
| Onions (sets) | Plant outdoors: Jan 11 – Jan 25 |
| Peas | Sow outdoors: Dec 28 – Jan 11 |
| Spinach | Sow outdoors: Dec 28 – Jan 11 |
| Lettuce | Sow outdoors: Jan 11 – Jan 25 |
| Carrots | Sow outdoors: Jan 11 – Jan 25 |
| Potatoes | Plant outdoors: Jan 11 – Jan 25 |
| Beans | Sow outdoors: Feb 15 – Feb 22 |
| Sweet corn | Sow outdoors: Feb 15 – Feb 22 |
| Cucumbers | Sow outdoors: Feb 15 – Feb 22 |
| Squash & zucchini | Sow outdoors: Feb 15 – Feb 22 |
| Basil | Start seeds indoors: Dec 28 – Jan 11 Transplant outdoors: Feb 15 – Feb 22 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Oct 30 (8 weeks before the average first fall frost on Dec 25).
Useful for zone 9a 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
- Shade cloth — for hot summers
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Jan 9 | Feb 8 | Mar 10 |
| First 32°F frost in fall is before | Jan 20 | Dec 25 | Nov 26 |
How to read it: in spring there is a 10% chance of a frost after March 10, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 26. A hard freeze (28°F) usually ends around January 24.
Hardiness zone by ZIP code in Brunswick
- 31520 zone 9a
- 31521 zone 9a
- 31523 zone 9a
- 31524 zone 9a
- 31525 zone 9a
Nearby cities
- Saint Simon Mills zone 9a, last frost Feb 9
- Saint Simons Island zone 9a, last frost Feb 9
- Kingsland zone 9a, last frost Mar 14
- St. Marys zone 9a, last frost Feb 2
- Hinesville zone 9a, last frost Mar 5
- Richmond Hill zone 9a, last frost Mar 2
- Waycross zone 9a, last frost Mar 15
- Georgetown zone 9a, last frost Mar 2
Questions
What growing zone is Brunswick, GA?
Brunswick is in USDA Plant Hardiness Zone 9a (average extreme winter low 20°F to 25°F), according to the USDA 2023 map.
When is the last frost in Brunswick?
The average last spring frost (32°F) in Brunswick is February 8. There is still a 10% chance of frost until March 10.
When can I plant tomatoes in Brunswick?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Feb 15 – Feb 22. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Brunswick, GA (USC00091340), 2.2 km (1.4 mi) from the city center, elevation 4 m, based on 26 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.