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When to plant tomato in Atlanta

How to grow TomatoAtlanta climate
Where are you growing?

Comfortable

Comfortable in greenhouse

Comfortable in a cold frame

Tomato in Atlanta is a good fit outdoors. The suitable growing window of 230 days covers the 55–90 days this plant usually needs.

Start indoors
January 13 – March 9
Transplant outside
March 14 – May 8
Harvest
May 8 – August 6
Season vs crop
230 grow days vs 55–90 needed
Typical frost (last spring – first fall)
February 28 – December 1

Tomato in Atlanta is a good fit outdoors. The suitable growing window of 230 days covers the 55–90 days this plant usually needs.

Planting conditions

Tomato planting activities across the year: Start indoors, Harden off, Transplant outside, Grow outdoors, HarvestJFMAMJJASOND~Feb 28~Dec 1
  • Start indoors
  • Harden off
  • Transplant outside
  • Grow outdoors
  • Harvest
Local activity windows for this place and growing method. Blue fill is usually too cold for this plant. Dashed lines are typical last and first frost.
Suitable growing days in a row230
Days to harvest55–90 days from transplant
Jan 13 – Mar 9
Start indoors
Mar 7 – Mar 13
Harden off
March 14
Transplant outside
Mar 15 – May 7
Grow outdoors
May 8 – Aug 6
Harvest
ActivityWindowNotes
Start indoorsJan 13 – Mar 9Sow indoors before the outdoor window.
Harden offMar 7 – Mar 13Acclimate seedlings outdoors before planting.
Transplant outsideMarch 14Move plants outside on this day (start of the plant-out window).
Grow outdoorsMar 15 – May 7Plants grow outdoors until harvest.
HarvestMay 8 – Aug 6Expected harvest from typical days to harvest.
Blue fill is usually too cold for this plant. Dashed lines are typical last and first frost. Adjust a week or two for your conditions.

Planting and growing across the year

Planting is the sow / plant-out window. Growing is daytime air versus this plant’s ideal (70 – 84 °F) and tolerable (55 – 95 °F) ranges.

Tomato planting and growing weeks in AtlantaJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECPlantingGrowing
Planting uses sow / plant-out rules (frost, soil germination, night, and last-sow): green when plantable, blue diagonal when nights or soil are too cold, amber cross-hatch when too hot, faint for other calendar limits. Growing shows daytime air against this plant’s ideal and tolerable ranges across the year.

Key dates

Typical last spring frostFebruary 28
Safer last spring frostFebruary 28
Typical first fall frostDecember 1
Safer first fall frostDecember 1
Frost-free days275
Earliest indoor seed startJanuary 13
Latest indoor seed startMarch 9
Transplant outdoorsMarch 14 – May 8
Direct sow windownot recommended here
Suitable growing windowMarch 14 – October 29 (230 days)
Expected harvestMay 8 – August 6

How these dates are judged

Ideal conditions
Daytime air from 70 – 84 °F.
Suitable conditions
Daytime air from 55 – 95 °F.
Last frost and first frost
Typical spring and fall frost dates for Atlanta, shown in the key dates.
Days to harvest
55–90 days from transplant, from typical days to harvest.
Sowing window
Dated sow and harvest bars use frost dates, soil minima, night limits, and last-sow count-back from typical crop timing. The year strip and weekly chart use the same window: air ratings only colour weeks inside it.

Growing window for Tomato: Mar 14 – Oct 29 (230 days)

Planting window for Tomato: Mar 14 – May 8 (56 days)

Usually too cold: Nov 2 – Dec 31

Outdoors: weekly temperatures and windows

Temperatures across the year for Atlanta. Shaded bands are this plant’s ideal and tolerable daytime air ranges. Growing is daytime air suitability; Planting is sow / plant-out conditions (same colour language). Window brackets mark each stretch.

JanFebMarAprMayJunJulAugSepOctNovDec−20 °C−4 °F−10 °C14 °F0 °C32 °F10 °C50 °F20 °C68 °F30 °C86 °F40 °C104 °FTolerable 13–35 °CTolerable 55–95 °FIdeal 21–29 °CIdeal 70–84 °FWindowGrowingMar 14 – Oct 29PlantingMar 14 – May 8Last frost ~Feb 28First frost ~Dec 1
  • Ideal range
  • Tolerable range
  • Possible min to max
  • Average min to max
  • Suitable
  • Tolerable
  • Too cold
  • Too hot

Selected week · tap a week or use the arrows

Week 11 · Mar 9 – Mar 15

Average 45 to 65 °F · Possible 23 to 76 °F

Growing: too cold

Planting: too cold

A week is in range when its average low and high sit inside the tolerance band 55 to 95 °F; it is suitable when that average range also overlaps the ideal 70 to 84 °F band and possible readings stay within 32 °F to 95 °F. Crossing a possible limit, or missing the ideal band, makes it tolerable; any chance of frost (possible low below 32 °F) makes it too cold. When a sowing window is calculated, weeks outside that window are uncoloured even if air is in range.

Based on average frost dates.

Show all 53 weeks
Cover method weekly charts

Outdoor weekly chart is above. Open a cover chart only if you grow under fleece, a cold frame, or an unheated greenhouse.

Other plants for Atlanta

Calculated by Plan & Plant · Method · Data 2019–2026

Frost and suitability dates are typical figures from climate statistics. Microclimates vary; they are not a guarantee.

How we calculated this
  • Data: ERA5-Land via Open-Meteo, cell 33.70, -84.40, years 2019–2026 (not a 30-year climate normal yet).
  • Typical and safer dates: Typical last frost is the date after which half of winters in this sample had no more frost; safer is later in the sample so fewer winters still frosted.
  • Crop rule: Local windows for Tomato from frost dates, temperature ratings, and crop timing rules.
  • Confidence: Provisional — short or thin sample for this place.
  • Full methodology (algorithm 2026-10-season-6).

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