When to plant in Johns Creek, GA
USDA Zone 8aJohns Creek, Georgia frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
These dates come from a station roughly 20 km away, the closest with full normals; terrain around Johns Creek (elevation, water, pavement) can move your real frost dates a few days either way. Zone 8a means many perennials and even some tender shrubs overwinter in Johns Creek, while your frost dates still decide when annuals go out.
Frost probability
ATLANTA PEACHTREE AP · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Johns Creek’s own odds, recorded at ATLANTA PEACHTREE AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 22 | Apr 7 | Mar 21 | Oct 17 | Oct 29 | Nov 12 |
| 32°F | Apr 12 | Mar 25 | Mar 5 | Oct 26 | Nov 9 | Nov 27 |
| 28°F | Mar 31 | Mar 12 | Feb 18 | Nov 4 | Nov 22 | Dec 14 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Johns Creek, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 40 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Johns Creek planting FAQ
When is the last spring frost in Johns Creek, GA?
On average, the last spring frost in Johns Creek is around March 25 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Johns Creek, GA?
In Johns Creek, the first 32°F freeze of fall lands around November 9 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Johns Creek in?
Johns Creek is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Johns Creek?
There are roughly 229 frost-free days in Johns Creek (a long growing season), running from the average last frost around March 25 to the first fall frost near November 9.
When should I plant tomatoes in Johns Creek?
In Johns Creek, start tomato seeds indoors around January 28–February 11, then transplant seedlings outdoors around April 1 once the danger of frost has passed.
Never miss a window in Johns Creek
An email when it’s time to start seeds, transplant, and sow — timed to Johns Creek’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Duluth · 6 km
- Alpharetta · 8 km
- Peachtree Corners · 8 km
- Norcross · 11 km
- Suwanee · 13 km
- Roswell · 14 km
- Dunwoody · 14 km
- Doraville · 15 km
Frost dates recorded at ATLANTA PEACHTREE AP, 20 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Johns Creek, GA — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053863. Retrieved from https://blissgarden.com/georgia/johns-creek.