When to plant in Lilburn, GA
USDA Zone 8aEverything below — frost dates, hardiness zone, and what to plant when in Lilburn, Georgia — is derived from the closest NOAA station with complete climate normals.
Heads up: the nearest complete-normals station is about 15 km from Lilburn, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. In zone 8a, Lilburn supports a wide range of perennials year-round; the frost dates above are what set your annual vegetable timing.
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 Lilburn’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 Lilburn, 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.
Lilburn planting FAQ
When is the last spring frost in Lilburn, GA?
Lilburn's average last spring frost falls near March 25 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Lilburn, GA?
In Lilburn, 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 Lilburn in?
Lilburn is in USDA hardiness zone 8a. In zone 8a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Lilburn?
Lilburn has about 229 frost-free days — a long growing season — between the average last spring frost (March 25) and first fall frost (November 9).
When should I plant tomatoes in Lilburn?
For Lilburn, sow tomatoes indoors about January 28–February 11 and move the seedlings out around April 1, after the last spring frost.
Never miss a window in Lilburn
An email when it’s time to start seeds, transplant, and sow — timed to Lilburn’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Mountain Park · 5 km
- Tucker · 8 km
- Norcross · 8 km
- Peachtree Corners · 12 km
- Duluth · 12 km
- Doraville · 12 km
- Snellville · 12 km
- Clarkston · 13 km
Frost dates recorded at ATLANTA PEACHTREE AP, 15 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 Lilburn, GA — Frost Dates & Zone 8a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053863. Retrieved from https://blissgarden.com/georgia/lilburn.