Alpharetta, Georgia planting calendar and frost dates

Frost dates in Alpharetta

NOAA U.S. Climate Normals 1991-2020 for Atlanta Peachtree Airport, 15.6 miles SSW of the city center. Low-lying and rural spots often frost later in spring and earlier in fall than airports and city centers. Alpharetta shares this station with Sandy Springs, so the two cities have the same frost dates and planting calendar.

What to plant each month in Alpharetta

1. January

   Start indoors: black-eyed susans, broccoli, cabbages, cauliflower, chives, collard greens, ginger, kale, leeks, lettuce, marigolds, onions, oregano, parsley, peppers, petunias, ranunculus, rosemary, sage, snapdragons

2. February

   Start indoors: basil, black-eyed susans, cabbages, cauliflower, celery, chives, cilantro, collard greens, eggplants, ginger, lettuce, marigolds, nasturtiums, peppers, ranunculus, sage, snapdragons, spinach, swiss chard, tomatoes

   Plant or sow outdoors: beets, black-eyed susans, blackberries, blueberries, broccoli, cauliflower, chives, cilantro, collard greens, figs, garlic, gladioli, grapes, grass seed, hollyhocks, kale, leeks, onions, peas, poppies, radishes, ranunculus, raspberries, rhubarb, roses, spinach, strawberries, swiss chard, turnips, wildflowers

3. March

   Start indoors: basil, cantaloupes, cosmos, cucumbers, okra, pumpkins, ranunculus, tomatoes, watermelons, winter squash, zucchini

   Plant or sow outdoors: asparagus, beets, black-eyed susans, blackberries, broccoli, cabbages, carrots, cauliflower, chives, cilantro, collard greens, dahlias, dill, figs, garden mums, gladioli, grapes, green onions, kentucky bluegrass, lavenders, leeks, lettuce, lilies, marigolds, mints, nasturtiums, onions, oregano, parsley, perennial ryegrass, petunias, potatoes, radishes, ranunculus, rosemary, roses, sage, snapdragons, spinach, sunflowers, sweet corn, sweet peas, swiss chard, tall fescue, thyme, turnips

4. April

   Start indoors: cosmos, okra, zinnias

   Plant or sow outdoors: asparagus, basil, cantaloupes, chives, cilantro, cucumbers, dahlias, dill, eggplants, garden mums, ginger, gladioli, grapes, green beans, green onions, kentucky bluegrass, lavenders, lettuce, lilies, marigolds, mints, nasturtiums, oregano, parsley, peppers, perennial ryegrass, petunias, pumpkins, ranunculus, rosemary, sage, spinach, st. augustinegrass, sunflowers, sweet corn, sweet peas, swiss chard, tall fescue, thyme, tomatoes, watermelons, winter squash, zucchini

5. May

   Plant or sow outdoors: bermudagrass, celery, centipedegrass, cosmos, green onions, okra, peanuts, st. augustinegrass, sweet potatoes, zinnias, zoysiagrass

6. June

   Plant or sow outdoors: bermudagrass, centipedegrass, st. augustinegrass, zinnias, zoysiagrass

7. July

   Plant for fall: peppers, potatoes, tomatoes

8. 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, tomatoes, turnips, zucchini

9. 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

10. October

    Plant for fall: cabbages, cauliflower, crocuses, daffodils, daylilies, grass seed, hostas, hyacinths, kale, kentucky bluegrass, lilies, ornamental alliums, peonies, perennial ryegrass, radishes, saffron, spinach, tall fescue, tulips

11. November

    Plant for fall: crocuses, daffodils, garlic, hyacinths, lilies, ornamental alliums, peonies, tulips

12. December

    Start indoors: collard greens, leeks, onions, petunias, ranunculus

Frost dates and zones by ZIP code in Alpharetta

Alpharetta's 4 main ZIP codes take their frost dates from 2 different NOAA stations: the typical last frost ranges from March 25 in 30005 to April 4 in 30004. Every one of them is in zone 8a.

Atlanta Peachtree Airport also supplies the frost dates for Sandy Springs, Roswell, Johns Creek and Dunwoody, so their planting calendars match Alpharetta's.

Planting dates for popular crops in Alpharetta

Nearby cities

• Johns Creek, GA zone 8a, last frost Mar 25
• Roswell, GA zone 8a, last frost Mar 25
• Dunwoody, GA zone 8a, last frost Mar 25
• Sandy Springs, GA zone 8a, last frost Mar 25
• Brookhaven, GA zone 8a, last frost Mar 15
• Marietta, GA zone 8a, last frost Apr 2