FrostCal

When to Plant Dahlias: Planting Dates by State

The right time to plant dahlias depends on your local frost dates. Plant tubers 1-3 weeks after last frost once soil is warm (60F+); very frost-sensitive.

Days to maturity 90–120 days

Dahlias Planting Windows by State

StatePlanting window across the state
AlabamaPlant outdoors Feb 28 (Mobile) to Apr 13 (Jacksonville)
AlaskaPlant outdoors Apr 11 (Ketchikan) to Jun 18 (Kalifornsky)
ArizonaPlant outdoors Jan 11 (Bullhead City) to Jun 11 (Flagstaff)
ArkansasPlant outdoors Mar 20 (Texarkana) to Apr 19 (Centerton)
CaliforniaPlant outdoors Jan 5 (San Mateo) to Jun 3 (Big Bear City)
ColoradoPlant outdoors Apr 21 (Grand Junction) to Jun 28 (Edwards)
ConnecticutPlant outdoors Apr 12 (Bridgeport) to May 15 (Torrington)
DelawarePlant outdoors Apr 6 (Claymont) to Apr 26 (Hockessin)
District of ColumbiaPlant outdoors Mar 31 (Washington) to Apr 16 (Chevy Chase)
FloridaPlant outdoors Jan 22 (Sarasota) to Mar 28 (Crestview)
GeorgiaPlant outdoors Feb 9 (St. Marys) to Apr 18 (Cartersville)
IdahoPlant outdoors Apr 13 (Lewiston) to May 24 (Eagle)
IllinoisPlant outdoors Apr 8 (Granite City) to May 8 (Roscoe)
IndianaPlant outdoors Apr 5 (Evansville) to May 9 (Auburn)
IowaPlant outdoors Apr 17 (Keokuk) to May 10 (Grinnell)
KansasPlant outdoors Apr 11 (Kansas City) to May 5 (Garden City)
KentuckyPlant outdoors Apr 7 (Louisville) to May 8 (Shelbyville)
LouisianaPlant outdoors Jan 31 (Metairie) to Mar 24 (Minden)
MainePlant outdoors May 2 (Lewiston) to May 23 (Sanford)
MarylandPlant outdoors Mar 29 (California) to May 1 (Westminster)
MassachusettsPlant outdoors Apr 11 (Boston) to May 17 (North Adams)
MichiganPlant outdoors Apr 26 (Port Huron) to May 26 (Cadillac)
MinnesotaPlant outdoors Apr 28 (Winona) to Jun 12 (Hibbing)
MississippiPlant outdoors Feb 19 (Biloxi) to Apr 10 (Oxford)
MissouriPlant outdoors Apr 2 (Sikeston) to Apr 28 (Kirksville)
MontanaPlant outdoors May 12 (Laurel) to Jun 20 (Butte)
NebraskaPlant outdoors Apr 22 (Elkhorn) to May 18 (Alliance)
NevadaPlant outdoors Jan 27 (Henderson) to Jun 13 (Spring Creek)
New HampshirePlant outdoors Apr 28 (Salem) to May 21 (Berlin)
New JerseyPlant outdoors Apr 2 (Atlantic City) to May 7 (Manville)
New MexicoPlant outdoors Mar 7 (Chaparral) to May 31 (Las Vegas)
New YorkPlant outdoors Apr 2 (Elmhurst) to May 24 (Corning)
North CarolinaPlant outdoors Mar 25 (Morehead City) to May 9 (Boone)
North DakotaPlant outdoors May 11 (Wahpeton) to May 28 (Beulah)
OhioPlant outdoors Apr 15 (Cleveland) to May 15 (Girard)
OklahomaPlant outdoors Mar 22 (Ardmore) to Apr 25 (Guymon)
OregonPlant outdoors Feb 18 (Beaverton) to Jun 16 (Altamont)
PennsylvaniaPlant outdoors Apr 6 (Philadelphia) to May 22 (Hermitage)
Rhode IslandPlant outdoors Apr 14 (Newport) to May 8 (Narragansett)
South CarolinaPlant outdoors Feb 11 (Charleston) to Apr 27 (Gaffney)
South DakotaPlant outdoors May 3 (Tea) to May 19 (Ellsworth Air Force Base)
TennesseePlant outdoors Mar 23 (New South Memphis) to Apr 28 (Bristol)
TexasPlant outdoors Jan 15 (Edinburg) to Apr 28 (Dumas)
UtahPlant outdoors Mar 21 (Saint George) to Jun 11 (Heber City)
VermontPlant outdoors May 6 (Burlington) to May 27 (Morristown)
VirginiaPlant outdoors Mar 23 (Newport News) to May 3 (Radford)
WashingtonPlant outdoors Mar 8 (Port Townsend) to Jun 6 (Cheney)
West VirginiaPlant outdoors Apr 19 (Huntington) to May 13 (Beckley)
WisconsinPlant outdoors Apr 26 (Kenosha) to May 18 (Merrill)
WyomingPlant outdoors May 11 (Worland) to Jun 19 (Evanston)

Pick a state for city-by-city dates. For the most precise dates, look up your ZIP code.

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