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Alpharetta, GA Planting Calendar

The last spring frost in Alpharetta usually comes around Mar 23 and the first fall frost around Nov 10, a growing season of about 232 days. Start tomatoes indoors Feb 9 – Feb 23 and plant them outside Apr 6 – Apr 20.

Last spring frostMar 23
First fall frostNov 10
Growing season232 days

When to plant vegetables in Alpharetta

VegetableStart seeds indoorsPlant outsideFall crop
TomatoesFeb 9 – Feb 23Apr 6 – Apr 20—
PeppersFeb 2 – Feb 16Apr 13 – Apr 27—
EggplantFeb 2 – Feb 16Apr 13 – Apr 27—
Cucumbers—Apr 6 – Apr 20—
Zucchini & summer squash—Apr 6 – Apr 20—
Pumpkins & winter squash—Apr 13 – Apr 27—
Green beans—Apr 6 – Apr 20Aug 18 – Sep 1
Sweet corn—Apr 6 – Apr 20—
BasilFeb 23 – Mar 9Apr 6 – Apr 20—
LettuceJan 26 – Feb 9Feb 23 – Apr 6Sep 15 – Sep 29
Spinach—Feb 9 – Mar 2Sep 15 – Sep 29
Peas—Feb 9 – Mar 2Sep 1 – Sep 15
Carrots—Feb 23 – Mar 30Aug 18 – Sep 1
Radishes—Feb 16 – Apr 6Sep 29 – Oct 13
BroccoliJan 12 – Jan 26Feb 23 – Mar 9Aug 18 – Sep 1
KaleJan 26 – Feb 9Feb 16 – Mar 2Sep 1 – Sep 15
Onions—Feb 23 – Mar 9—
Potatoes—Mar 2 – Mar 30—
Garlic——Oct 27 – Dec 1

Dates count from the median frost dates (2016–2025) for Alpharetta. In a cold spring, wait a week; in a warm one you can go a week early.

Month-by-month planting in Alpharetta

  1. JanuaryStart indoors: Lettuce, Broccoli, Kale
  2. FebruaryStart indoors: Tomatoes, Peppers, Eggplant, Basil, Lettuce, KalePlant outside: Lettuce, Spinach, Peas, Carrots, Radishes, Broccoli, Kale, Onions
  3. MarchStart indoors: BasilPlant outside: Lettuce, Spinach, Peas, Carrots, Radishes, Broccoli, Kale, Onions, Potatoes
  4. AprilPlant outside: Tomatoes, Peppers, Eggplant, Cucumbers, Zucchini & summer squash, Pumpkins & winter squash, Green beans, Sweet corn, Basil, Lettuce, Radishes
  5. MayPlan, order seeds and prepare beds.
  6. JunePlan, order seeds and prepare beds.
  7. JulyPlan, order seeds and prepare beds.
  8. AugustPlant outside: Green beans, Carrots, Broccoli
  9. SeptemberPlant outside: Green beans, Lettuce, Spinach, Peas, Carrots, Radishes, Broccoli, Kale
  10. OctoberPlant outside: Radishes, Garlic
  11. NovemberPlant outside: Garlic
  12. DecemberPlant outside: Garlic

Tools for this season

Seed starting kitTrays with humidity domes for starting seeds indoors.See options on AmazonLED grow lightKeeps indoor seedlings short and sturdy.See options on AmazonFrost clothCovers tender plants on a surprise frost night.See options on AmazonSoil thermometerCheck the soil at 4 inches before you spread anything.See options on Amazon

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Frequently asked questions

When is the last frost in Alpharetta?

The median last spring frost is Mar 23 and the median first fall frost is Nov 10, based on 2016–2025 weather data.

When should I plant tomatoes in Alpharetta?

Start seeds indoors Feb 9 – Feb 23 and set plants outside Apr 6 – Apr 20, once nights stay above 50°F.

When should I plant a fall garden in Alpharetta?

Sow or transplant cool-season crops 6 to 12 weeks before the first fall frost (around Nov 10): broccoli and carrots first, lettuce, spinach and radishes last.

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