Frost Dates & Planting Calendar for Duluth, GA
Plan your garden around Duluth, GA's typical frost-free growing season, using NOAA climate normals and a 42-crop planting calendar built for this location.
Last Spring Frost
March 25
Safe Apr 12
Typical Mar 25
Risky Mar 5
First Fall Frost
November 9
Safe Oct 26
Typical Nov 9
Risky Nov 27
Growing Season
228 days
Typical last frost to typical first frost.
USDA Hardiness Zone
Zone 8a
Mild winters and a long growing season, room for both cool- and warm-season crops.
Data: NOAA station ATLANTA PEACHTREE AP, GA US, 20.3 km away.
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days until the typical last spring frost
Monthly Temperatures
Avg. high
Avg. temp
Avg. low
Planting Calendar
| Crop | Start indoors | Direct sow | Transplant | Fall planting | Maturity | Notes |
|---|---|---|---|---|---|---|
| Tomato | Jan 28 – Feb 11 | — | Apr 1 – Apr 8 | — | 60–85 days | Start indoors 6-8 weeks before last frost; transplant out 1-2 weeks after last frost once soil has warmed. |
| Pepper | Jan 14 – Jan 28 | — | Apr 1 – Apr 15 | — | 60–90 days | Slow to germinate; start indoors 8-10 weeks before last frost. Transplant only once nights stay above 55F, 1-3 weeks after last frost. |
| Eggplant | Jan 14 – Jan 28 | — | Apr 8 – Apr 15 | — | 65–85 days | Warm-season crop, similar timing to pepper; needs consistently warm soil (65F+) to transplant. |
| Cucumber | Feb 25 – Mar 4 | Apr 1 – Apr 8 | Apr 1 – Apr 8 | — | 50–65 days | Can be started indoors 3-4 weeks before transplanting, or direct-sown 1-2 weeks after last frost once soil is warm. |
| Zucchini | Mar 4 – Mar 11 | Apr 1 – Apr 15 | Apr 1 – Apr 8 | — | 45–55 days | Fast-growing squash; direct sow 1-3 weeks after last frost, or start indoors 2-3 weeks early for a head start. |
| Winter Squash | Feb 25 – Mar 4 | Apr 1 – Apr 15 | Apr 1 – Apr 8 | — | 80–110 days | Long season; direct sow after soil warms, or start indoors 3-4 weeks before last frost in short-season climates. |
| Pumpkin | — | Apr 1 – Apr 15 | — | — | 90–120 days | Direct sow 1-3 weeks after last frost; back-time from your first fall frost so the 90-120 day maturity window lands before it. |
| Watermelon | Feb 25 – Mar 4 | — | Apr 8 – Apr 15 | — | 70–90 days | Needs warm soil (65F+); start indoors 3-4 weeks before last frost, transplant 2-3 weeks after last frost. |
| Cantaloupe | Feb 25 – Mar 4 | — | Apr 8 – Apr 15 | — | 70–90 days | Same warm-soil requirements as watermelon; avoid disturbing roots when transplanting. |
| Corn | — | Mar 25 – Apr 8 | — | — | 60–100 days | Direct sow at last frost to 2 weeks after, once soil reaches 60F; does not transplant well. Succession sow every 2 weeks. |
| Green Bean | — | Mar 25 – Apr 8 | — | — | 50–65 days | Direct sow at last frost to 2 weeks after, once soil has warmed; frost-tender, do not rush. |
| Pea | — | Feb 11 – Feb 25 | — | — | 55–70 days | Cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked. |
| Lettuce | — | Feb 25 – Mar 11 | — | Sep 14 – Sep 28 | 45–60 days | Cold-hardy; direct sow 2-4 weeks before last frost. Also transplantable from indoor starts. |
| Spinach | — | Feb 11 – Feb 25 | — | Sep 14 – Sep 28 | 40–50 days | Very cold-hardy; direct sow 4-6 weeks before last frost as soon as soil can be worked. |
| Kale | — | Feb 25 – Mar 11 | — | Aug 31 – Sep 14 | 50–65 days | Cold-hardy; direct sow 2-4 weeks before last frost or start indoors for earlier transplants. |
| Arugula | — | Feb 25 – Mar 11 | — | Sep 28 – Oct 5 | 30–40 days | Fast-growing, cold-tolerant green; direct sow 2-4 weeks before last frost, succession sow every 2-3 weeks. |
| Swiss Chard | — | Mar 4 – Mar 18 | — | — | 50–60 days | Fairly cold-hardy; direct sow 1-3 weeks before last frost. Tolerates light frost in fall too. |
| Broccoli | Feb 4 – Feb 18 | — | Mar 4 – Mar 11 | Sep 7 – Sep 14 | 55–80 days | Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost). |
| Cauliflower | Feb 4 – Feb 18 | — | Mar 11 – Mar 18 | Aug 31 – Sep 7 | 55–85 days | Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost. |
| Cabbage | Feb 4 – Feb 18 | — | Feb 25 – Mar 11 | Aug 31 – Sep 14 | 60–100 days | Cold-hardy; start indoors 5-7 weeks before last frost, transplant 2-4 weeks before last frost. |
| Brussels Sprouts | Feb 4 – Feb 18 | — | Mar 4 – Mar 18 | — | 90–110 days | Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost. |
| Carrot | — | Feb 25 – Mar 11 | — | Aug 17 – Aug 31 | 60–80 days | Direct sow only (does not transplant); sow 2-4 weeks before last frost, as soon as soil can be worked. |
| Beet | — | Feb 25 – Mar 11 | — | Aug 31 – Sep 14 | 50–65 days | Direct sow 2-4 weeks before last frost; tolerates light frost. |
| Radish | — | Feb 18 – Mar 4 | — | Sep 28 – Oct 12 | 22–30 days | Very fast and cold-hardy; direct sow 3-5 weeks before last frost, as soon as soil can be worked. |
| Turnip | — | Feb 25 – Mar 11 | — | Aug 31 – Sep 14 | 40–60 days | Cold-hardy; direct sow 2-4 weeks before last frost. |
| Onion | Jan 14 – Jan 28 | — | Feb 25 – Mar 11 | — | 90–120 days | Start seeds indoors 8-10 weeks before last frost (or use sets/transplants); set out 2-4 weeks before last frost, very cold-tolerant as seedlings. |
| Garlic | — | — | — | Oct 12 – Oct 26 | 240–270 days | Fall-planted crop only; not planted in spring in most climates. |
| Potato | — | Feb 25 – Mar 11 | — | — | 70–120 days | Plant seed potatoes 2-4 weeks before last frost, as soon as soil can be worked and is above 45F; light frost on emerging foliage is usually tolerated. |
| Sweet Potato | — | — | Apr 8 – Apr 22 | — | 90–120 days | Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive. |
| Asparagus | — | — | Feb 25 – Mar 11 | — | 730–1095 days | Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production. |
| Crop | Start indoors | Direct sow | Transplant | Fall planting | Maturity | Notes |
|---|---|---|---|---|---|---|
| Basil | Feb 11 – Feb 18 | — | Apr 1 – Apr 8 | — | 50–70 days | Very frost/cold sensitive; start indoors 5-6 weeks before last frost, transplant only after all danger of frost (1-2 weeks after) and nights stay warm. |
| Cilantro | — | Mar 4 – Mar 18 | — | Sep 14 – Sep 28 | 45–70 days | Cool-season, bolts in heat; direct sow 1-3 weeks before last frost, succession sow through spring. |
| Parsley | Jan 28 – Feb 11 | — | Mar 11 – Mar 18 | — | 70–90 days | Slow to germinate; start indoors 6-8 weeks before last frost, transplant 1-2 weeks before last frost (biennial, cold-tolerant). |
| Dill | — | Mar 4 – Mar 18 | — | — | 40–60 days | Taprooted, does not transplant well; direct sow 1-3 weeks before last frost, succession sow through summer. |
| Oregano | Jan 28 – Feb 11 | — | Mar 25 – Apr 1 | — | 80–90 days | Perennial herb; start indoors 6-8 weeks before last frost, transplant around/just after last frost date. |
| Thyme | Jan 28 – Feb 11 | — | Mar 25 – Apr 1 | — | 85–95 days | Perennial herb, slow from seed; start indoors 6-8 weeks before last frost, transplant around/after last frost. |
| Crop | Start indoors | Direct sow | Transplant | Fall planting | Maturity | Notes |
|---|---|---|---|---|---|---|
| Sunflower | — | Apr 1 – Apr 15 | — | — | 70–100 days | Direct sow 1-3 weeks after last frost once soil has warmed; taprooted, resents transplanting. |
| Zinnia | Feb 25 – Mar 4 | Apr 1 – Apr 15 | Apr 1 – Apr 8 | — | 60–70 days | Frost-tender; direct sow 1-3 weeks after last frost, or start indoors 3-4 weeks early for earlier blooms. |
| Marigold | Feb 11 – Feb 25 | — | Apr 1 – Apr 8 | — | 45–60 days | Frost-tender; start indoors 4-6 weeks before last frost, transplant after all frost danger has passed. |
| Cosmos | Feb 25 – Mar 4 | Apr 1 – Apr 15 | Apr 1 – Apr 8 | — | 60–90 days | Easy from direct seed 1-3 weeks after last frost; can also start indoors 3-4 weeks early. |
| Nasturtium | — | Apr 1 – Apr 15 | — | — | 50–65 days | Frost-tender, resents root disturbance; direct sow 1-3 weeks after last frost once soil has warmed. |
| Dahlia | — | — | Apr 1 – Apr 15 | — | 90–120 days | Plant tubers 1-3 weeks after last frost once soil is warm (60F+); very frost-sensitive. |
Date ranges are estimates based on university extension guidelines and this city's NOAA frost normals — not a guarantee. Scroll to see all columns on narrow screens.
Frequently Asked Questions
When is the last frost in Duluth, GA?
Based on 1991–2020 NOAA climate normals for the ATLANTA PEACHTREE AP, GA US station, the last spring frost in Duluth typically falls around March 25. A cautious gardener might wait until April 12 (only a 10% chance of a later frost), while March 5 marks an earlier, higher-risk planting date.
When is the first frost in Duluth, GA in fall?
The first fall frost in Duluth typically arrives around November 9. To stay safe, assume frost could start as early as October 26; in milder years it can hold off until November 27.
How long is the growing season in Duluth, GA?
Duluth's average frost-free growing season is about 228 days, running from the typical last spring frost (March 25) to the typical first fall frost (November 9).
What USDA hardiness zone is Duluth, GA in?
Duluth, GA is in USDA plant hardiness zone 8a, per the USDA's 2023 Plant Hardiness Zone Map. Mild winters and a long growing season, room for both cool- and warm-season crops.