Johns Creek, GA planting zone & frost dates
Johns Creek is in USDA hardiness zone 8a. The last spring frost usually comes around March 25 and the first fall frost around November 9, for a growing season of about 228 days.
Planting calendar for Johns Creek
Dates are counted from the average last spring frost (March 25) 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: Jan 28 – Feb 11 Transplant outdoors: Apr 1 – Apr 8 |
| Peppers | Start seeds indoors: Jan 14 – Jan 28 Transplant outdoors: Apr 8 – Apr 15 |
| Eggplant | Start seeds indoors: Jan 14 – Jan 28 Transplant outdoors: Apr 8 – Apr 15 |
| Broccoli | Start seeds indoors: Jan 14 – Jan 28 Transplant outdoors: Feb 25 – Mar 11 |
| Cabbage | Start seeds indoors: Jan 14 – Jan 28 Transplant outdoors: Feb 25 – Mar 11 |
| Onions (sets) | Plant outdoors: Feb 25 – Mar 11 |
| Peas | Sow outdoors: Feb 11 – Feb 25 |
| Spinach | Sow outdoors: Feb 11 – Feb 25 |
| Lettuce | Sow outdoors: Feb 25 – Mar 11 |
| Carrots | Sow outdoors: Feb 25 – Mar 11 |
| Potatoes | Plant outdoors: Feb 25 – Mar 11 |
| Beans | Sow outdoors: Apr 1 – Apr 8 |
| Sweet corn | Sow outdoors: Apr 1 – Apr 8 |
| Cucumbers | Sow outdoors: Apr 1 – Apr 8 |
| Squash & zucchini | Sow outdoors: Apr 1 – Apr 8 |
| Basil | Start seeds indoors: Feb 11 – Feb 25 Transplant outdoors: Apr 1 – Apr 8 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 14 (8 weeks before the average first fall frost on Nov 9).
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 5 | Mar 25 | Apr 12 |
| First 32°F frost in fall is before | Nov 27 | Nov 9 | Oct 26 |
How to read it: in spring there is a 10% chance of a frost after April 12, so that is a safe date for tender plants. In fall there is a 10% chance of frost before October 26. A hard freeze (28°F) usually ends around March 12.
Nearby cities
- Duluth zone 8a, last frost Mar 25
- Peachtree Corners zone 8a, last frost Mar 25
- Norcross zone 8a, last frost Mar 25
- Alpharetta zone 8a, last frost Mar 25
- Suwanee zone 8a, last frost Apr 4
- Milton zone 8a, last frost Apr 4
- Lilburn zone 8a, last frost Mar 25
- Doraville zone 8a, last frost Mar 25
Questions
What growing zone is Johns Creek, GA?
Johns Creek 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 Johns Creek?
The average last spring frost (32°F) in Johns Creek is March 25. There is still a 10% chance of frost until April 12.
When can I plant tomatoes in Johns Creek?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Apr 1 – Apr 8. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Atlanta Peachtree Ap, GA (USW00053863), 19.6 km (12.2 mi) from the city center, elevation 305 m, based on 20 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.