FrostCal

When to Plant Dahlias in Oklahoma

In a typical Oklahoma location, plant outdoors Apr 9 – Apr 23. Across the state, the outdoor planting window starts as early as Mar 22 in Ardmore and as late as Apr 25 in Guymon.

Method Plant out (slips, crowns, or tubers)
Days to maturity 90–120 days

Plant tubers 1-3 weeks after last frost once soil is warm (60F+); very frost-sensitive.

Dahlias Planting Dates by City

CityPlant outdoors
Oklahoma CityApr 11 – Apr 25
TulsaApr 7 – Apr 21
NormanApr 7 – Apr 21
Broken ArrowApr 8 – Apr 22
LawtonApr 8 – Apr 22
EdmondApr 9 – Apr 23
MooreApr 11 – Apr 25
Midwest CityApr 9 – Apr 23
EnidApr 13 – Apr 27
StillwaterApr 12 – Apr 26
MuskogeeApr 14 – Apr 28
BartlesvilleApr 18 – May 2
OwassoApr 7 – Apr 21
ShawneeApr 6 – Apr 20
YukonApr 9 – Apr 23
ArdmoreMar 22 – Apr 5
Ponca CityApr 17 – May 1
BixbyApr 8 – Apr 22
DuncanApr 1 – Apr 15
Del CityApr 9 – Apr 23
JenksApr 6 – Apr 20
SapulpaApr 6 – Apr 20
MustangApr 11 – Apr 25
Sand SpringsApr 6 – Apr 20
BethanyApr 9 – Apr 23
AltusApr 12 – Apr 26
ClaremoreApr 14 – Apr 28
El RenoApr 13 – Apr 27
McAlesterApr 7 – Apr 21
AdaApr 9 – Apr 23

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 dahlias in Oklahoma?

In a typical Oklahoma location, plant outdoors Apr 9 – Apr 23. 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 dahlias take to grow?

Dahlias typically take 90–120 days from planting to harvest. Plant tubers 1-3 weeks after last frost once soil is warm (60F+); very frost-sensitive.

Other Crops in Oklahoma

When to plant dahlias in other states

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