When to plant onions in Oklahoma

Onions
Plant out in Oklahoma City
Feb 21–Mar 14

Across Oklahoma the window opens between February 1 and February 28. Find your city below; the dates follow each town's own average last frost.

Start indoors, Oklahoma City
Jan 10–Feb 7
Plant out, Oklahoma City
Feb 21–Mar 14
Last frost, Oklahoma City
Apr 4

Start seeds indoors 8–12 weeks before the last frost; plant out 3–6 weeks before the last frost. Northern gardens need long-day varieties and southern gardens need short-day ones. A wrong pick gives small bulbs.

Onions planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
Oklahoma CityFeb 21–Mar 14
TulsaFeb 17–Mar 10
NormanFeb 20–Mar 13
Broken ArrowFeb 18–Mar 11
EdmondFeb 27–Mar 20
LawtonFeb 12–Mar 5
MooreFeb 17–Mar 10
Midwest CityFeb 19–Mar 12
EnidFeb 23–Mar 16
StillwaterFeb 22–Mar 15
OwassoFeb 17–Mar 10
BartlesvilleFeb 28–Mar 21
MuskogeeFeb 24–Mar 17
BixbyFeb 18–Mar 11
ShawneeFeb 16–Mar 9
JenksFeb 16–Mar 9
YukonFeb 19–Mar 12
ArdmoreFeb 1–Feb 22
MustangFeb 21–Mar 14
Ponca CityFeb 27–Mar 20
SapulpaFeb 16–Mar 9
DuncanFeb 11–Mar 4
DurantFeb 17–Mar 10
Del CityFeb 19–Mar 12
El RenoFeb 23–Mar 16
ClaremoreFeb 24–Mar 17
Sand SpringsFeb 16–Mar 9
BethanyFeb 19–Mar 12

Questions

When should I plant onions in Oklahoma?

In Oklahoma City, plant out from February 21 to March 14. Across Oklahoma the window opens between February 1 and February 28, depending on the local last frost.

How is this date worked out?

Start seeds indoors 8–12 weeks before the last frost; plant out 3–6 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Oklahoma

Onions in other states

Frost dates for every city in Oklahoma