FrostCal

When to Plant Onions in Georgia

In a typical Georgia location, start seeds indoors Jan 14 – Jan 28, then transplant outdoors Feb 25 – Mar 11. Across the state, the outdoor planting window starts as early as Jan 5 in St. Marys and as late as Mar 14 in Cartersville.

Method Start indoors, then transplant
Days to maturity 90–120 days

Start seeds indoors 8-10 weeks before last frost (or use sets/transplants); set out 2-4 weeks before last frost, very cold-tolerant as seedlings.

Onions Planting Dates by City

CityStart indoorsTransplant
AtlantaJan 13 – Jan 27Feb 24 – Mar 10
ColumbusDec 25 – Jan 8Feb 5 – Feb 19
SavannahDec 22 – Jan 5Feb 2 – Feb 16
AthensJan 12 – Jan 26Feb 23 – Mar 9
South FultonJan 4 – Jan 18Feb 15 – Mar 1
Sandy SpringsJan 14 – Jan 28Feb 25 – Mar 11
RoswellJan 14 – Jan 28Feb 25 – Mar 11
MaconJan 10 – Jan 24Feb 21 – Mar 7
Johns CreekJan 14 – Jan 28Feb 25 – Mar 11
AlbanyDec 30 – Jan 13Feb 10 – Feb 24
Warner RobinsDec 31 – Jan 14Feb 11 – Feb 25
AlpharettaJan 14 – Jan 28Feb 25 – Mar 11
MariettaJan 16 – Jan 30Feb 27 – Mar 13
SmyrnaJan 16 – Jan 30Feb 27 – Mar 13
ValdostaDec 25 – Jan 8Feb 5 – Feb 19
BrookhavenJan 14 – Jan 28Feb 25 – Mar 11
StonecrestJan 14 – Jan 28Feb 25 – Mar 11
DunwoodyJan 14 – Jan 28Feb 25 – Mar 11
AugustaDec 19 – Jan 2Jan 30 – Feb 13
Peachtree CornersJan 14 – Jan 28Feb 25 – Mar 11
GainesvilleJan 9 – Jan 23Feb 20 – Mar 6
MiltonJan 24 – Feb 7Mar 7 – Mar 21
NewnanJan 23 – Feb 6Mar 6 – Mar 20
MabletonJan 16 – Jan 30Feb 27 – Mar 13
RomeJan 21 – Feb 4Mar 4 – Mar 18
MartinezDec 19 – Jan 2Jan 30 – Feb 13
East PointJan 4 – Jan 18Feb 15 – Mar 1
Peachtree CityJan 15 – Jan 29Feb 26 – Mar 12
DaltonJan 22 – Feb 5Mar 5 – Mar 19
KennesawJan 22 – Feb 5Mar 5 – Mar 19

Showing the 30 most populous of 113 Georgia cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Georgia cities.

Frequently Asked Questions

When should I plant onions in Georgia?

In a typical Georgia location, start seeds indoors Jan 14 – Jan 28, then transplant outdoors Feb 25 – Mar 11. Across the state, the outdoor planting window starts as early as Jan 5 in St. Marys and as late as Mar 14 in Cartersville.

When is the last frost in Georgia?

The average last spring frost in Georgia ranges from February 2 in St. Marys to April 11 in Cartersville, based on NOAA 1991–2020 climate normals.

How long do onions take to grow?

Onions typically take 90–120 days from planting to harvest. Start seeds indoors 8-10 weeks before last frost (or use sets/transplants); set out 2-4 weeks before last frost, very cold-tolerant as seedlings.

Other Crops in Georgia

When to plant onions in other states

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