When to plant in Milton, GA
USDA Zone 8aEverything below — frost dates, hardiness zone, and what to plant when in Milton, Georgia — is derived from the closest NOAA station with complete climate normals.
Milton's nearest full-normals station sits about 20 km out, so treat these as a close estimate — local microclimate can nudge your first and last frost. Zone 8a means many perennials and even some tender shrubs overwinter in Milton, while your frost dates still decide when annuals go out.
Frost probability
CUMMING 2N · 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 Milton’s own odds, recorded at CUMMING 2N.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 30 | Apr 16 | Apr 1 | Oct 11 | Oct 25 | Nov 7 |
| 32°F | Apr 19 | Apr 4 | Mar 16 | Oct 23 | Nov 4 | Nov 23 |
| 28°F | Apr 7 | Mar 20 | Feb 26 | Nov 1 | Nov 15 | Dec 5 |
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 Milton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 38 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.
Milton planting FAQ
When is the last spring frost in Milton, GA?
Plan for the last spring frost in Milton around April 4 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Milton, GA?
The first fall frost in Milton typically arrives around November 4 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Milton in?
Milton is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Milton?
There are roughly 214 frost-free days in Milton (a long growing season), running from the average last frost around April 4 to the first fall frost near November 4.
When should I plant tomatoes in Milton?
In Milton, start tomato seeds indoors around February 7–February 21, then transplant seedlings outdoors around April 11 once the danger of frost has passed.
Never miss a window in Milton
An email when it’s time to start seeds, transplant, and sow — timed to Milton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Alpharetta · 9 km
- Roswell · 12 km
- Holly Springs · 16 km
- Johns Creek · 16 km
- Woodstock · 19 km
- Canton · 20 km
- Peachtree Corners · 21 km
- Duluth · 22 km
Frost dates recorded at CUMMING 2N, 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 Milton, GA — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00092408. Retrieved from https://blissgarden.com/georgia/milton.