When to plant kohlrabi in Atlanta, Georgia

February 24 – March 10

Transplant outdoors · typical Atlanta year

Climate basis: NOAA station Atlanta Fulton Co AP, GA (USW00003888), 8 mi (13 km) from downtown Atlanta (ZCTA 30303 centroid), elevation 840 ft, on the 1991–2020 climate normals. Transplant kohlrabi outdoors from approximately the dates above, anchored to the median last spring 32°F freeze (March 24). One year in ten still freezes after April 10.

Last spring freezeMarch 241-in-10 after Apr 10

First fall freezeNovember 81-in-10 before Oct 27

Frost-free season≈ 231 daysmedian at 32°F

Hard freeze, 28°Mar 9 – Nov 20kills even hardy greens

USDA zone8a10 to 15°F winter low — not frost timing

The Atlanta year

Start seeds indoorsJan 13 – Jan 27

Transplant outdoorsFeb 24 – Mar 10

Fall plantingSep 13 – Oct 11

indoors under lights
in the garden
frost-free season
1-in-10 years still freeze to Apr 10

Kohlrabi in Atlanta · freeze context from Atlanta Fulton Co AP, GA, 1991–2020 normals.

Every method, with its sources

Start seeds indoors

Jan 13 – Jan 27

Sow 4–6 weeks before the set-out window opens (UNH: time from seed to transplant 4–6 weeks). Anchored to the median last spring freeze (Mar 24). University of New Hampshire Extension

Transplant outdoors

Feb 24 – Mar 10

UNH: safe to set out 4 weeks before the last frost; Purdue's hardy class allows 4–6 weeks before. The later UNH start is used. Anchored to the median last spring freeze (Mar 24). University of New Hampshire Extension · Purdue University Extension

Fall planting

Sep 13 – Oct 11

Purdue Table 2: plant fall kohlrabi at least 4–8 weeks before the first fall frost. Anchored to the median first fall freeze (Nov 8). Purdue University Extension

These windows describe typical years (1991–2020 climate normals), not this year's forecast. Freezes happen outside them — especially in frost pockets, valleys, and urban edges. Watch the forecast before committing tender plants.

This week, not a typical year:

Crop rule sources (2)

University of New Hampshire Extension: Growing Vegetables: When to Plant Your Vegetable Garden [fact sheet] (accessed 2026-07-24)
Per-crop 'time from seed to transplant' and 'safe to set out in garden' relative to last frost.
Purdue University Extension: Indiana Vegetable Planting Calendar (HO-186-W) (accessed 2026-07-24)
Hardiness classes: hardy = plant 4-6 wk before last spring frost; semi-hardy = 2-4 wk before; tender = after average last frost; very tender = at least 2 wk after. Table 2: fall planting at least 4-8 wk before first fall frost.

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