FrostCal

When to Plant Marigolds in Oklahoma

In a typical Oklahoma location, start seeds indoors Feb 19 – Mar 5, 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 Start indoors, then transplant
Days to maturity 45–60 days

Frost-tender; start indoors 4-6 weeks before last frost, transplant after all frost danger has passed.

Marigolds Planting Dates by City

CityStart indoorsTransplant
Oklahoma CityFeb 21 – Mar 7Apr 11 – Apr 18
TulsaFeb 17 – Mar 3Apr 7 – Apr 14
NormanFeb 17 – Mar 3Apr 7 – Apr 14
Broken ArrowFeb 18 – Mar 4Apr 8 – Apr 15
LawtonFeb 18 – Mar 4Apr 8 – Apr 15
EdmondFeb 19 – Mar 5Apr 9 – Apr 16
MooreFeb 21 – Mar 7Apr 11 – Apr 18
Midwest CityFeb 19 – Mar 5Apr 9 – Apr 16
EnidFeb 23 – Mar 9Apr 13 – Apr 20
StillwaterFeb 22 – Mar 8Apr 12 – Apr 19
MuskogeeFeb 24 – Mar 10Apr 14 – Apr 21
BartlesvilleFeb 28 – Mar 14Apr 18 – Apr 25
OwassoFeb 17 – Mar 3Apr 7 – Apr 14
ShawneeFeb 16 – Mar 2Apr 6 – Apr 13
YukonFeb 19 – Mar 5Apr 9 – Apr 16
ArdmoreFeb 1 – Feb 15Mar 22 – Mar 29
Ponca CityFeb 27 – Mar 13Apr 17 – Apr 24
BixbyFeb 18 – Mar 4Apr 8 – Apr 15
DuncanFeb 11 – Feb 25Apr 1 – Apr 8
Del CityFeb 19 – Mar 5Apr 9 – Apr 16
JenksFeb 16 – Mar 2Apr 6 – Apr 13
SapulpaFeb 16 – Mar 2Apr 6 – Apr 13
MustangFeb 21 – Mar 7Apr 11 – Apr 18
Sand SpringsFeb 16 – Mar 2Apr 6 – Apr 13
BethanyFeb 19 – Mar 5Apr 9 – Apr 16
AltusFeb 22 – Mar 8Apr 12 – Apr 19
ClaremoreFeb 24 – Mar 10Apr 14 – Apr 21
El RenoFeb 23 – Mar 9Apr 13 – Apr 20
McAlesterFeb 17 – Mar 3Apr 7 – Apr 14
AdaFeb 19 – Mar 5Apr 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 marigolds in Oklahoma?

In a typical Oklahoma location, start seeds indoors Feb 19 – Mar 5, 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 marigolds take to grow?

Marigolds typically take 45–60 days from planting to harvest. Frost-tender; start indoors 4-6 weeks before last frost, transplant after all frost danger has passed.

Other Crops in Oklahoma

When to plant marigolds in other states

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