FrostCal

When to Plant Winter Squash in Oklahoma

In a typical Oklahoma location, start seeds indoors Mar 5 – Mar 12, then sow outdoors Apr 9 – Apr 23, then transplant outdoors Apr 9 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 22 in Ardmore and as late as Apr 25 in Guymon.

Method Direct sow
Days to maturity 80–110 days

Long season; direct sow after soil warms, or start indoors 3-4 weeks before last frost in short-season climates.

Winter Squash Planting Dates by City

CityStart indoorsDirect sowTransplant
Oklahoma CityMar 7 – Mar 14Apr 11 – Apr 25Apr 11 – Apr 18
TulsaMar 3 – Mar 10Apr 7 – Apr 21Apr 7 – Apr 14
NormanMar 3 – Mar 10Apr 7 – Apr 21Apr 7 – Apr 14
Broken ArrowMar 4 – Mar 11Apr 8 – Apr 22Apr 8 – Apr 15
LawtonMar 4 – Mar 11Apr 8 – Apr 22Apr 8 – Apr 15
EdmondMar 5 – Mar 12Apr 9 – Apr 23Apr 9 – Apr 16
MooreMar 7 – Mar 14Apr 11 – Apr 25Apr 11 – Apr 18
Midwest CityMar 5 – Mar 12Apr 9 – Apr 23Apr 9 – Apr 16
EnidMar 9 – Mar 16Apr 13 – Apr 27Apr 13 – Apr 20
StillwaterMar 8 – Mar 15Apr 12 – Apr 26Apr 12 – Apr 19
MuskogeeMar 10 – Mar 17Apr 14 – Apr 28Apr 14 – Apr 21
BartlesvilleMar 14 – Mar 21Apr 18 – May 2Apr 18 – Apr 25
OwassoMar 3 – Mar 10Apr 7 – Apr 21Apr 7 – Apr 14
ShawneeMar 2 – Mar 9Apr 6 – Apr 20Apr 6 – Apr 13
YukonMar 5 – Mar 12Apr 9 – Apr 23Apr 9 – Apr 16
ArdmoreFeb 15 – Feb 22Mar 22 – Apr 5Mar 22 – Mar 29
Ponca CityMar 13 – Mar 20Apr 17 – May 1Apr 17 – Apr 24
BixbyMar 4 – Mar 11Apr 8 – Apr 22Apr 8 – Apr 15
DuncanFeb 25 – Mar 4Apr 1 – Apr 15Apr 1 – Apr 8
Del CityMar 5 – Mar 12Apr 9 – Apr 23Apr 9 – Apr 16
JenksMar 2 – Mar 9Apr 6 – Apr 20Apr 6 – Apr 13
SapulpaMar 2 – Mar 9Apr 6 – Apr 20Apr 6 – Apr 13
MustangMar 7 – Mar 14Apr 11 – Apr 25Apr 11 – Apr 18
Sand SpringsMar 2 – Mar 9Apr 6 – Apr 20Apr 6 – Apr 13
BethanyMar 5 – Mar 12Apr 9 – Apr 23Apr 9 – Apr 16
AltusMar 8 – Mar 15Apr 12 – Apr 26Apr 12 – Apr 19
ClaremoreMar 10 – Mar 17Apr 14 – Apr 28Apr 14 – Apr 21
El RenoMar 9 – Mar 16Apr 13 – Apr 27Apr 13 – Apr 20
McAlesterMar 3 – Mar 10Apr 7 – Apr 21Apr 7 – Apr 14
AdaMar 5 – Mar 12Apr 9 – Apr 23Apr 9 – Apr 16

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 winter squash in Oklahoma?

In a typical Oklahoma location, start seeds indoors Mar 5 – Mar 12, then sow outdoors Apr 9 – Apr 23, then transplant outdoors Apr 9 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 22 in Ardmore and as late as Apr 25 in Guymon.

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 winter squash take to grow?

Winter Squash typically take 80–110 days from planting to harvest. Long season; direct sow after soil warms, or start indoors 3-4 weeks before last frost in short-season climates.

Other Crops in Oklahoma

When to plant winter squash in other states

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