When to plant Spinach in Illinois

In spring, from Feb 1 – Mar 20 in Alton to Mar 20 – Apr 20 in Zion.

In fall, from Aug 1 – Sept 1 in Bartlett to Sept 15 – Nov 1 in Wood River.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Spinach planting dates by place in Illinois
PlaceSpringFall
AddisonMar 1 – Apr 15Sept 1 – Oct 1
AlgonquinMar 20 – Apr 20Aug 20 – Sept 10
AlsipFeb 15 – Apr 1Sept 1 – Oct 1
AltonFeb 1 – Mar 20Sept 15 – Nov 1Now
AntiochMar 1 – Apr 15Aug 20 – Sept 10
Arlington HeightsMar 1 – Apr 15Sept 1 – Oct 1
AuroraMar 1 – Apr 15Aug 20 – Sept 10
BarringtonMar 1 – Apr 15Aug 20 – Sept 10
BartlettMar 20 – Apr 20Aug 1 – Sept 1
BataviaMar 1 – Apr 15Aug 20 – Sept 10
Beach ParkMar 20 – Apr 20Aug 20 – Sept 10
BellevilleFeb 15 – Apr 1Aug 20 – Sept 10
BellwoodMar 1 – Apr 15Sept 1 – Oct 1
BelvidereMar 1 – Apr 15Aug 20 – Sept 10
BensenvilleMar 1 – Apr 15Sept 1 – Oct 1
BerwynFeb 15 – Apr 1Sept 1 – Oct 1
BloomingdaleMar 20 – Apr 20Aug 1 – Sept 1
BloomingtonMar 1 – Apr 15Aug 20 – Sept 10
Blue IslandFeb 15 – Apr 1Sept 1 – Oct 1
BolingbrookMar 1 – Apr 15Aug 20 – Sept 10
BourbonnaisMar 1 – Apr 15Aug 20 – Sept 10
BradleyMar 1 – Apr 15Aug 20 – Sept 10
BridgeviewFeb 15 – Apr 1Sept 1 – Oct 1
BrookfieldFeb 15 – Apr 1Sept 1 – Oct 1
Buffalo GroveMar 1 – Apr 15Sept 1 – Oct 1
BurbankFeb 15 – Apr 1Sept 1 – Oct 1
Burr RidgeMar 1 – Apr 15Aug 20 – Sept 10
Cahokia HeightsFeb 15 – Apr 1Sept 1 – Oct 1
Calumet CityMar 1 – Apr 15Aug 20 – Sept 10
Campton HillsMar 1 – Apr 15Aug 20 – Sept 10
CantonMar 1 – Apr 15Aug 20 – Sept 10
CarbondaleFeb 15 – Apr 1Aug 20 – Sept 10
Carol StreamMar 1 – Apr 15Aug 20 – Sept 10
CarpentersvilleMar 20 – Apr 20Aug 20 – Sept 10
CaryMar 20 – Apr 20Aug 1 – Sept 1
CentraliaFeb 15 – Apr 1Aug 20 – Sept 10
ChampaignFeb 15 – Apr 1Aug 20 – Sept 10
ChannahonMar 1 – Apr 15Sept 1 – Oct 1
CharlestonFeb 15 – Apr 1Aug 20 – Sept 10
ChathamFeb 15 – Apr 1Aug 20 – Sept 10
ChicagoFeb 15 – Apr 1Sept 15 – Nov 1Now
Chicago HeightsMar 1 – Apr 15Aug 20 – Sept 10
Chicago RidgeFeb 15 – Apr 1Sept 1 – Oct 1
CiceroFeb 15 – Apr 1Sept 1 – Oct 1
CollinsvilleFeb 15 – Apr 1Sept 1 – Oct 1
ColumbiaFeb 15 – Apr 1Sept 1 – Oct 1
Country Club HillsMar 1 – Apr 15Aug 20 – Sept 10
Crest HillMar 1 – Apr 15Aug 20 – Sept 10
CrestwoodFeb 15 – Apr 1Sept 1 – Oct 1
Crystal LakeMar 1 – Apr 15Aug 20 – Sept 10
DanvilleMar 1 – Apr 15Aug 20 – Sept 10
DarienMar 1 – Apr 15Aug 20 – Sept 10
DecaturFeb 15 – Apr 1Aug 20 – Sept 10
DeerfieldMar 20 – Apr 20Aug 20 – Sept 10
DeKalbMar 1 – Apr 15Aug 20 – Sept 10
Des PlainesMar 1 – Apr 15Sept 1 – Oct 1
DixonMar 1 – Apr 15Aug 20 – Sept 10
DoltonMar 1 – Apr 15Aug 20 – Sept 10
Downers GroveMar 20 – Apr 20Aug 20 – Sept 10
East MolineMar 1 – Apr 15Aug 20 – Sept 10
East PeoriaMar 1 – Apr 15Aug 20 – Sept 10
East St. LouisFeb 15 – Apr 1Sept 1 – Oct 1
EdwardsvilleFeb 1 – Mar 20Sept 15 – Nov 1Now
EffinghamFeb 15 – Apr 1Aug 20 – Sept 10
ElginMar 20 – Apr 20Aug 20 – Sept 10
Elk Grove VillageMar 1 – Apr 15Sept 1 – Oct 1
ElmhurstMar 1 – Apr 15Sept 1 – Oct 1
Elmwood ParkMar 1 – Apr 15Sept 1 – Oct 1
EvanstonMar 20 – Apr 20Aug 20 – Sept 10
Evergreen ParkFeb 15 – Apr 1Sept 1 – Oct 1
Fairview HeightsFeb 15 – Apr 1Sept 1 – Oct 1
Forest ParkFeb 15 – Apr 1Sept 1 – Oct 1
Fox LakeMar 1 – Apr 15Aug 20 – Sept 10
FrankfortMar 1 – Apr 15Aug 20 – Sept 10
Franklin ParkMar 1 – Apr 15Sept 1 – Oct 1
FreeportMar 20 – Apr 20Aug 1 – Sept 1
GalesburgMar 1 – Apr 15Aug 20 – Sept 10
GenevaMar 1 – Apr 15Aug 20 – Sept 10
Glen CarbonFeb 1 – Mar 20Sept 15 – Nov 1Now
Glen EllynMar 20 – Apr 20Aug 20 – Sept 10
Glendale HeightsMar 20 – Apr 20Aug 20 – Sept 10
GlenviewMar 20 – Apr 20Aug 20 – Sept 10
GodfreyFeb 1 – Mar 20Sept 15 – Nov 1Now
Granite CityFeb 1 – Mar 20Sept 15 – Nov 1Now
GrayslakeMar 20 – Apr 20Aug 20 – Sept 10
GurneeMar 20 – Apr 20Aug 20 – Sept 10
Hanover ParkMar 20 – Apr 20Aug 1 – Sept 1
HarveyMar 1 – Apr 15Aug 20 – Sept 10
Hazel CrestMar 1 – Apr 15Aug 20 – Sept 10
HerrinFeb 15 – Apr 1Aug 20 – Sept 10
Hickory HillsMar 1 – Apr 15Aug 20 – Sept 10
HighlandFeb 15 – Apr 1Aug 20 – Sept 10
Highland ParkMar 20 – Apr 20Aug 20 – Sept 10
HinsdaleMar 1 – Apr 15Aug 20 – Sept 10
Hoffman EstatesMar 20 – Apr 20Aug 1 – Sept 1
Homer GlenMar 1 – Apr 15Aug 20 – Sept 10
HomewoodMar 1 – Apr 15Aug 20 – Sept 10
HuntleyMar 1 – Apr 15Aug 20 – Sept 10
JacksonvilleMar 1 – Apr 15Aug 20 – Sept 10
JolietMar 1 – Apr 15Aug 20 – Sept 10
JusticeFeb 15 – Apr 1Sept 1 – Oct 1
KankakeeMar 1 – Apr 15Aug 20 – Sept 10
KewaneeMar 1 – Apr 15Aug 20 – Sept 10
La GrangeFeb 15 – Apr 1Sept 1 – Oct 1
La Grange ParkFeb 15 – Apr 1Sept 1 – Oct 1
Lake ForestMar 20 – Apr 20Aug 20 – Sept 10
Lake in the HillsMar 1 – Apr 15Aug 20 – Sept 10
Lake ZurichMar 20 – Apr 20Aug 20 – Sept 10
LansingMar 1 – Apr 15Aug 20 – Sept 10
LemontMar 1 – Apr 15Aug 20 – Sept 10
LibertyvilleMar 20 – Apr 20Aug 20 – Sept 10
LincolnMar 1 – Apr 15Aug 20 – Sept 10
LincolnwoodMar 20 – Apr 20Aug 20 – Sept 10
LindenhurstMar 1 – Apr 15Aug 20 – Sept 10
LisleMar 20 – Apr 20Aug 20 – Sept 10
LockportMar 1 – Apr 15Aug 20 – Sept 10
LombardMar 20 – Apr 20Aug 20 – Sept 10
Loves ParkMar 1 – Apr 15Aug 20 – Sept 10
LyonsFeb 15 – Apr 1Sept 1 – Oct 1
Machesney ParkMar 20 – Apr 20Aug 1 – Sept 1
MacombMar 1 – Apr 15Aug 20 – Sept 10
MahometMar 1 – Apr 15Aug 1 – Sept 1
ManhattanMar 1 – Apr 15Aug 20 – Sept 10
MarionFeb 15 – Apr 1Aug 20 – Sept 10
MarkhamMar 1 – Apr 15Aug 20 – Sept 10
MattesonMar 1 – Apr 15Aug 20 – Sept 10
MattoonFeb 15 – Apr 1Sept 1 – Oct 1
MaywoodFeb 15 – Apr 1Sept 1 – Oct 1
McHenryMar 20 – Apr 20Aug 1 – Sept 1
Melrose ParkMar 1 – Apr 15Sept 1 – Oct 1
MidlothianFeb 15 – Apr 1Sept 1 – Oct 1
MinookaMar 1 – Apr 15Sept 1 – Oct 1
MokenaMar 1 – Apr 15Aug 20 – Sept 10
MolineMar 1 – Apr 15Aug 20 – Sept 10
MontgomeryMar 1 – Apr 15Aug 20 – Sept 10
MorrisMar 1 – Apr 15Aug 20 – Sept 10
MortonMar 1 – Apr 15Aug 20 – Sept 10
Morton GroveMar 20 – Apr 20Aug 20 – Sept 10
Mount ProspectMar 1 – Apr 15Sept 1 – Oct 1
Mount VernonFeb 15 – Apr 1Aug 20 – Sept 10
MundeleinMar 20 – Apr 20Aug 20 – Sept 10
NapervilleMar 20 – Apr 20Aug 20 – Sept 10
New LenoxMar 1 – Apr 15Aug 20 – Sept 10
NilesMar 1 – Apr 15Sept 1 – Oct 1
NormalMar 1 – Apr 15Aug 20 – Sept 10
NorridgeMar 1 – Apr 15Sept 1 – Oct 1
North AuroraMar 1 – Apr 15Aug 20 – Sept 10
North ChicagoMar 20 – Apr 20Aug 20 – Sept 10
NorthbrookMar 20 – Apr 20Aug 20 – Sept 10
NorthlakeMar 1 – Apr 15Sept 1 – Oct 1
O'FallonFeb 15 – Apr 1Aug 20 – Sept 10
Oak ForestMar 1 – Apr 15Aug 20 – Sept 10
Oak LawnFeb 15 – Apr 1Sept 1 – Oct 1
Oak ParkFeb 15 – Apr 1Sept 1 – Oct 1
Orland ParkMar 1 – Apr 15Aug 20 – Sept 10
OswegoMar 1 – Apr 15Aug 20 – Sept 10
OttawaMar 20 – Apr 20Aug 20 – Sept 10
PalatineMar 1 – Apr 15Aug 20 – Sept 10
Palos HeightsFeb 15 – Apr 1Sept 1 – Oct 1
Palos HillsMar 1 – Apr 15Aug 20 – Sept 10
Park ForestMar 1 – Apr 15Aug 20 – Sept 10
Park RidgeMar 1 – Apr 15Sept 1 – Oct 1
PekinMar 1 – Apr 15Aug 20 – Sept 10
PeoriaMar 1 – Apr 15Aug 20 – Sept 10
Pingree GroveMar 20 – Apr 20Aug 20 – Sept 10
PlainfieldMar 1 – Apr 15Aug 20 – Sept 10
PlanoMar 20 – Apr 20Aug 1 – Sept 1
PontiacMar 1 – Apr 15Aug 20 – Sept 10
Prospect HeightsMar 1 – Apr 15Sept 1 – Oct 1
QuincyFeb 15 – Apr 1Sept 1 – Oct 1
RantoulMar 1 – Apr 15Aug 20 – Sept 10
Richton ParkMar 1 – Apr 15Aug 20 – Sept 10
River ForestFeb 15 – Apr 1Sept 1 – Oct 1
River GroveMar 1 – Apr 15Sept 1 – Oct 1
RiverdaleFeb 15 – Apr 1Sept 1 – Oct 1
Rock IslandMar 1 – Apr 15Aug 20 – Sept 10
RockfordMar 1 – Apr 15Aug 20 – Sept 10
Rolling MeadowsMar 1 – Apr 15Sept 1 – Oct 1
RomeovilleMar 1 – Apr 15Aug 20 – Sept 10
RoscoeMar 20 – Apr 20Aug 1 – Sept 1
RoselleMar 20 – Apr 20Aug 1 – Sept 1
Round LakeMar 20 – Apr 20Aug 20 – Sept 10
Round Lake BeachMar 1 – Apr 15Aug 20 – Sept 10
SchaumburgMar 20 – Apr 20Aug 1 – Sept 1
Schiller ParkMar 1 – Apr 15Sept 1 – Oct 1
ShilohFeb 15 – Apr 1Aug 20 – Sept 10
ShorewoodMar 1 – Apr 15Aug 20 – Sept 10
SkokieMar 20 – Apr 20Aug 20 – Sept 10
South ElginMar 20 – Apr 20Aug 20 – Sept 10
South HollandMar 1 – Apr 15Aug 20 – Sept 10
SpringfieldFeb 15 – Apr 1Aug 20 – Sept 10
St. CharlesMar 1 – Apr 15Aug 20 – Sept 10
SterlingMar 1 – Apr 15Aug 20 – Sept 10
StreamwoodMar 20 – Apr 20Aug 1 – Sept 1
StreatorFeb 15 – Apr 1Sept 1 – Oct 1
SummitFeb 15 – Apr 1Sept 1 – Oct 1
SwanseaFeb 15 – Apr 1Aug 20 – Sept 10
SycamoreMar 1 – Apr 15Aug 20 – Sept 10
TaylorvilleFeb 15 – Apr 1Aug 20 – Sept 10
Tinley ParkMar 1 – Apr 15Aug 20 – Sept 10
TroyFeb 15 – Apr 1Aug 20 – Sept 10
UrbanaFeb 15 – Apr 1Aug 20 – Sept 10
Vernon HillsMar 20 – Apr 20Aug 20 – Sept 10
Villa ParkMar 20 – Apr 20Aug 20 – Sept 10
WarrenvilleMar 20 – Apr 20Aug 20 – Sept 10
WashingtonMar 1 – Apr 15Aug 20 – Sept 10
WaterlooFeb 15 – Apr 1Sept 1 – Oct 1
WaucondaMar 20 – Apr 20Aug 20 – Sept 10
WaukeganMar 20 – Apr 20Aug 20 – Sept 10
West ChicagoMar 1 – Apr 15Aug 20 – Sept 10
WestchesterFeb 15 – Apr 1Sept 1 – Oct 1
Western SpringsMar 1 – Apr 15Aug 20 – Sept 10
WestmontMar 20 – Apr 20Aug 20 – Sept 10
WheatonMar 20 – Apr 20Aug 20 – Sept 10
WheelingMar 1 – Apr 15Sept 1 – Oct 1
WilmetteMar 20 – Apr 20Aug 20 – Sept 10
WinfieldMar 1 – Apr 15Aug 20 – Sept 10
WinnetkaMar 20 – Apr 20Aug 20 – Sept 10
Wood DaleMar 1 – Apr 15Sept 1 – Oct 1
Wood RiverFeb 1 – Mar 20Sept 15 – Nov 1Now
WoodridgeMar 20 – Apr 20Aug 20 – Sept 10
WoodstockMar 1 – Apr 15Aug 20 – Sept 10
WorthFeb 15 – Apr 1Sept 1 – Oct 1
YorkvilleMar 20 – Apr 20Aug 1 – Sept 1
ZionMar 20 – Apr 20Aug 20 – Sept 10

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for spinach.