Marietta, Georgia planting calendar and frost dates
Marietta is in USDA hardiness zone 8a. The last spring frost typically comes around April 2 and the first fall frost around November 4, giving about 218 frost-free days a year.
- Hardiness zone
- Zone 8a
- Typical last frost
- April 2
- Typical first frost
- November 4
- Frost-free season
- 218 days
Frost dates in Marietta
Last spring frost
- March 15Risky: frost later than this in 9 years out of 10
- April 2Typical: a later frost in half of years
- April 19Safe: a later frost only 1 year in 10
First fall frost
- October 23Risky: frost earlier than this 1 year in 10
- November 4Typical: an earlier frost in half of years
- November 20Late: frost before this in 9 years out of 10
The growing season between the typical last and first frosts is about 218 days. Frost here means a low of 32°F at the weather station. A hard freeze (28°F), which damages most hardy crops too, typically ends around March 19 and returns around November 17.
NOAA U.S. Climate Normals 1991-2020 for Dallas 7 Ne, 9 miles WNW of the city center. Low-lying and rural spots often frost later in spring and earlier in fall than airports and city centers.
What to plant each month in Marietta
January
Start indoors: broccoli, cabbages, cauliflower, collard greens, kale, leeks, onions, oregano, parsley, peppers, petunias, ranunculus, rosemary, snapdragons
February
Start indoors: basil, black-eyed susans, broccoli, cabbages, cauliflower, celery, chives, cilantro, collard greens, eggplants, ginger, leeks, lettuce, marigolds, nasturtiums, oregano, parsley, peppers, petunias, ranunculus, rosemary, sage, snapdragons, spinach, swiss chard, tomatoes
Plant or sow outdoors: black-eyed susans, blueberries, garlic, grapes, grass seed, hollyhocks, kale, onions, peas, poppies, raspberries, rhubarb, strawberries, turnips, wildflowers
March
Start indoors: basil, cantaloupes, cilantro, cosmos, cucumbers, marigolds, nasturtiums, okra, pumpkins, ranunculus, tomatoes, watermelons, winter squash, zucchini
Plant or sow outdoors: asparagus, beets, black-eyed susans, blackberries, blueberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, dahlias, dill, figs, garlic, gladioli, grapes, grass seed, green onions, hollyhocks, kale, kentucky bluegrass, leeks, lettuce, onions, parsley, peas, perennial ryegrass, poppies, potatoes, radishes, ranunculus, raspberries, rhubarb, roses, snapdragons, spinach, strawberries, sweet peas, swiss chard, tall fescue, turnips, wildflowers
April
Start indoors: cosmos, okra, pumpkins, winter squash, zinnias
Plant or sow outdoors: asparagus, basil, beets, cantaloupes, carrots, chives, cilantro, cucumbers, dahlias, dill, eggplants, figs, garden mums, ginger, gladioli, grapes, green beans, green onions, kentucky bluegrass, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, oregano, parsley, peppers, perennial ryegrass, petunias, pumpkins, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, sweet peas, swiss chard, tall fescue, thyme, tomatoes, watermelons, winter squash, zucchini
May
Start indoors: zinnias
Plant or sow outdoors: bermudagrass, celery, centipedegrass, cosmos, green onions, okra, peanuts, st. augustinegrass, sweet potatoes, zinnias, zoysiagrass
June
Plant or sow outdoors: bermudagrass, centipedegrass, st. augustinegrass, zinnias, zoysiagrass
July
Plant for fall: brussels sprouts, peppers, potatoes, sweet corn, tomatoes
August
Plant for fall: bearded irises, beets, broccoli, brussels sprouts, cabbages, carrots, cauliflower, collard greens, cucumbers, green beans, lettuce, peas, peppers, radishes, snapdragons, spinach, sweet corn, swiss chard, turnips, zucchini
September
Plant for fall: azaleas, bearded irises, beets, broccoli, cabbages, carrots, cauliflower, clematis, coneflowers, crocuses, daffodils, daylilies, grass seed, hostas, hydrangeas, kale, kentucky bluegrass, lettuce, lilies, ornamental alliums, peonies, perennial ryegrass, radishes, roses, saffron, snapdragons, spinach, swiss chard, tall fescue, tulips, turnips
October
Plant for fall: crocuses, daffodils, daylilies, grass seed, hostas, hyacinths, kale, kentucky bluegrass, lilies, ornamental alliums, peonies, perennial ryegrass, radishes, saffron, tall fescue, tulips
November
Plant for fall: crocuses, daffodils, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips
December
Start indoors: onions
Frost dates and zones by ZIP code in Marietta
Marietta's 6 main ZIP codes take their frost dates from 3 different NOAA stations: the typical last frost ranges from March 25 in 30062 to April 2 in 30066. Every one of them is in zone 8a.
| ZIP code | Zone | Weather station | Typical last frost | Typical first frost |
|---|---|---|---|---|
| 30008 | 8a | Mableton 1 N, 3.3 mi SSE | Mar 27 | Nov 7 |
| 30060 | 8a | Mableton 1 N, 5 mi SSW | Mar 27 | Nov 7 |
| 30062 | 8a | Atlanta Peachtree Airport, 13.4 mi SE | Mar 25 | Nov 9 |
| 30064 | 8a | Dallas 7 Ne, 9 mi WNW | Apr 2 | Nov 4 |
| 30066 | 8a | Dallas 7 Ne, 14.3 mi W | Apr 2 | Nov 4 |
| 30067 | 8a | Atlanta Peachtree Airport, 10 mi ESE | Mar 25 | Nov 9 |
Planting dates for popular crops in Marietta
| Plant | Start indoors | Plant or sow outdoors | Fall planting |
|---|---|---|---|
| Tomatoes | Feb 16 to Mar 2 | Apr 13 to 27 | Jul 22 to 29 |
| Strawberries | — | Feb 19 to Mar 5 | — |
| Lettuce | Feb 5 to 19 | Mar 26 to Apr 9 | Aug 5 to Sep 9 |
| Cilantro | Feb 19 to Mar 5 | Apr 2 to 9 | — |
| Basil | Feb 23 to Mar 9 | Apr 13 to 20 | — |
| Potatoes | — | Mar 12 to 19 | Jul 15 to 22 |
| Garlic | — | Feb 19 to Mar 5 | Nov 4 to 18 |
| Onions | Dec 11 to Jan 22 | Mar 5 to 19 | — |
| Cucumbers | Mar 16 to 30 | Apr 13 to 27 | Aug 5 to 19 |
| Pumpkins | Mar 19 to Apr 2 | Apr 16 to 30 | — |
| Peppers | Jan 26 to Feb 23 | Apr 13 to 27 | Jul 15 to Aug 12 |
| Carrots | — | Mar 12 to Apr 2 | Aug 12 to Sep 2 |
| Sweet Potatoes | — | May 2 to 9 | — |
| Watermelons | Mar 9 to 23 | Apr 13 to 27 | — |
| Sweet Corn | — | Apr 2 to 16 | Jul 29 to Aug 12 |
| Green Beans | — | Apr 13 to 27 | Aug 12 to 19 |
| Zucchini | Mar 16 to 30 | Apr 13 to 27 | Aug 12 to 26 |
| Broccoli | Jan 15 to Feb 5 | Mar 5 to 19 | Aug 19 to Sep 16 |
| Peas | — | Feb 19 to Mar 5 | Aug 12 to 26 |
| Spinach | Feb 19 to 26 | Mar 26 to Apr 9 | Aug 26 to Sep 30 |
| Sunflowers | — | Apr 2 to 23 | — |
| Zinnias | Apr 24 to May 1 | May 22 to Jun 5 | — |
| Tulips | — | — | Sep 23 to Nov 18 |
| Daffodils | — | — | Sep 23 to Nov 4 |
| Grass Seed | — | Feb 19 to Mar 5 | Sep 23 to Oct 7 |
Nearby cities
- Smyrna, GA zone 8a, last frost Mar 24
- Mableton, GA zone 8a, last frost Mar 24
- Sandy Springs, GA zone 8a, last frost Mar 25
- Roswell, GA zone 8a, last frost Mar 25
- Dunwoody, GA zone 8a, last frost Mar 25
- Brookhaven, GA zone 8a, last frost Mar 15
Planting in GeorgiaAbout zone 8aPrintable calendar for Marietta
Questions
When is the last frost in Marietta?
Around April 2 in a typical year, based on NOAA's 1991-2020 records for Dallas 7 Ne. There is still a 1 in 10 chance of frost after April 19.
What planting zone is Marietta in?
USDA hardiness zone 8a (2023 map). The zone tells you which perennials survive the winter; planting dates depend on frost dates instead.
When should I plant tomatoes in Marietta?
Start seeds indoors February 16 to March 2 and set plants out April 13 to 27; the safest date to plant out is after April 19.
When is the first frost in Marietta?
Around November 4 in a typical year, and before October 23 about 1 year in 10.