FrostCal

When to Plant Cauliflower in Oklahoma

In a typical Oklahoma location, start seeds indoors Feb 12 – Feb 26, then transplant outdoors Mar 19 – Mar 26. Across the state, the outdoor planting window starts as early as Mar 1 in Ardmore and as late as Apr 4 in Guymon. For a fall crop, plant around Aug 25 – Sep 1.

Method Start indoors, then transplant
Days to maturity 55–85 days

Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Cauliflower Planting Dates by City

CityStart indoorsTransplantFall planting
Oklahoma CityFeb 14 – Feb 28Mar 21 – Mar 28Aug 24 – Aug 31
TulsaFeb 10 – Feb 24Mar 17 – Mar 24Aug 26 – Sep 2
NormanFeb 10 – Feb 24Mar 17 – Mar 24Aug 27 – Sep 3
Broken ArrowFeb 11 – Feb 25Mar 18 – Mar 25Aug 23 – Aug 30
LawtonFeb 11 – Feb 25Mar 18 – Mar 25Aug 27 – Sep 3
EdmondFeb 12 – Feb 26Mar 19 – Mar 26Aug 27 – Sep 3
MooreFeb 14 – Feb 28Mar 21 – Mar 28Aug 24 – Aug 31
Midwest CityFeb 12 – Feb 26Mar 19 – Mar 26Aug 27 – Sep 3
EnidFeb 16 – Mar 2Mar 23 – Mar 30Aug 23 – Aug 30
StillwaterFeb 15 – Mar 1Mar 22 – Mar 29Aug 21 – Aug 28
MuskogeeFeb 17 – Mar 3Mar 24 – Mar 31Aug 21 – Aug 28
BartlesvilleFeb 21 – Mar 7Mar 28 – Apr 4Aug 15 – Aug 22
OwassoFeb 10 – Feb 24Mar 17 – Mar 24Aug 26 – Sep 2
ShawneeFeb 9 – Feb 23Mar 16 – Mar 23Aug 27 – Sep 3
YukonFeb 12 – Feb 26Mar 19 – Mar 26Aug 26 – Sep 2
ArdmoreJan 25 – Feb 8Mar 1 – Mar 8Sep 5 – Sep 12
Ponca CityFeb 20 – Mar 6Mar 27 – Apr 3Aug 18 – Aug 25
BixbyFeb 11 – Feb 25Mar 18 – Mar 25Aug 23 – Aug 30
DuncanFeb 4 – Feb 18Mar 11 – Mar 18Aug 29 – Sep 5
Del CityFeb 12 – Feb 26Mar 19 – Mar 26Aug 27 – Sep 3
JenksFeb 9 – Feb 23Mar 16 – Mar 23Aug 26 – Sep 2
SapulpaFeb 9 – Feb 23Mar 16 – Mar 23Aug 26 – Sep 2
MustangFeb 14 – Feb 28Mar 21 – Mar 28Aug 24 – Aug 31
Sand SpringsFeb 9 – Feb 23Mar 16 – Mar 23Aug 26 – Sep 2
BethanyFeb 12 – Feb 26Mar 19 – Mar 26Aug 26 – Sep 2
AltusFeb 15 – Mar 1Mar 22 – Mar 29Aug 24 – Aug 31
ClaremoreFeb 17 – Mar 3Mar 24 – Mar 31Aug 21 – Aug 28
El RenoFeb 16 – Mar 2Mar 23 – Mar 30Aug 22 – Aug 29
McAlesterFeb 10 – Feb 24Mar 17 – Mar 24Aug 25 – Sep 1
AdaFeb 12 – Feb 26Mar 19 – Mar 26Aug 26 – Sep 2

Showing the 30 most populous of 48 Oklahoma cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Oklahoma cities.

Frequently Asked Questions

When should I plant cauliflower in Oklahoma?

In a typical Oklahoma location, start seeds indoors Feb 12 – Feb 26, then transplant outdoors Mar 19 – Mar 26. Across the state, the outdoor planting window starts as early as Mar 1 in Ardmore and as late as Apr 4 in Guymon. For a fall crop, plant around Aug 25 – Sep 1.

When is the last frost in Oklahoma?

The average last spring frost in Oklahoma ranges from March 15 in Ardmore to April 18 in Guymon, based on NOAA 1991–2020 climate normals.

How long do cauliflower take to grow?

Cauliflower typically take 55–85 days from planting to harvest. Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Other Crops in Oklahoma

When to plant cauliflower in other states

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