When to plant Peppers in Illinois

In spring, from Apr 15 – June 1 in Alton to May 15 – June 10 in Zion.

In fall, June 1 – July 20.

Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Peppers planting dates by place in Illinois
PlaceSpringFall
AddisonMay 10 – June 1June 1 – July 20
AlgonquinMay 15 – June 10June 1 – July 10
AlsipMay 1 – June 1June 1 – July 20
AltonApr 15 – June 1June 1 – Aug 1
AntiochMay 10 – June 1June 1 – July 10
Arlington HeightsMay 10 – June 1June 1 – July 20
AuroraMay 10 – June 1June 1 – July 10
BarringtonMay 10 – June 1June 1 – July 10
BartlettMay 15 – June 10June 1 – July 1
BataviaMay 10 – June 1June 1 – July 10
Beach ParkMay 15 – June 10June 1 – July 10
BellevilleMay 1 – June 1June 1 – July 10
BellwoodMay 10 – June 1June 1 – July 20
BelvidereMay 10 – June 1June 1 – July 10
BensenvilleMay 10 – June 1June 1 – July 20
BerwynMay 1 – June 1June 1 – July 20
BloomingdaleMay 15 – June 10June 1 – July 1
BloomingtonMay 10 – June 1June 1 – July 10
Blue IslandMay 1 – June 1June 1 – July 20
BolingbrookMay 10 – June 1June 1 – July 10
BourbonnaisMay 10 – June 1June 1 – July 10
BradleyMay 10 – June 1June 1 – July 10
BridgeviewMay 1 – June 1June 1 – July 20
BrookfieldMay 1 – June 1June 1 – July 20
Buffalo GroveMay 10 – June 1June 1 – July 20
BurbankMay 1 – June 1June 1 – July 20
Burr RidgeMay 10 – June 1June 1 – July 10
Cahokia HeightsMay 1 – June 1June 1 – July 20
Calumet CityMay 10 – June 1June 1 – July 10
Campton HillsMay 10 – June 1June 1 – July 10
CantonMay 10 – June 1June 1 – July 10
CarbondaleMay 1 – June 1June 1 – July 10
Carol StreamMay 10 – June 1June 1 – July 10
CarpentersvilleMay 15 – June 10June 1 – July 10
CaryMay 15 – June 10June 1 – July 1
CentraliaMay 1 – June 1June 1 – July 10
ChampaignMay 1 – June 1June 1 – July 10
ChannahonMay 10 – June 1June 1 – July 20
CharlestonMay 1 – June 1June 1 – July 10
ChathamMay 1 – June 1June 1 – July 10
ChicagoMay 1 – June 1June 1 – Aug 1
Chicago HeightsMay 10 – June 1June 1 – July 10
Chicago RidgeMay 1 – June 1June 1 – July 20
CiceroMay 1 – June 1June 1 – July 20
CollinsvilleMay 1 – June 1June 1 – July 20
ColumbiaMay 1 – June 1June 1 – July 20
Country Club HillsMay 10 – June 1June 1 – July 10
Crest HillMay 10 – June 1June 1 – July 10
CrestwoodMay 1 – June 1June 1 – July 20
Crystal LakeMay 10 – June 1June 1 – July 10
DanvilleMay 10 – June 1June 1 – July 10
DarienMay 10 – June 1June 1 – July 10
DecaturMay 1 – June 1June 1 – July 10
DeerfieldMay 15 – June 10June 1 – July 10
DeKalbMay 10 – June 1June 1 – July 10
Des PlainesMay 10 – June 1June 1 – July 20
DixonMay 10 – June 1June 1 – July 10
DoltonMay 10 – June 1June 1 – July 10
Downers GroveMay 15 – June 10June 1 – July 10
East MolineMay 10 – June 1June 1 – July 10
East PeoriaMay 10 – June 1June 1 – July 10
East St. LouisMay 1 – June 1June 1 – July 20
EdwardsvilleApr 15 – June 1June 1 – Aug 1
EffinghamMay 1 – June 1June 1 – July 10
ElginMay 15 – June 10June 1 – July 10
Elk Grove VillageMay 10 – June 1June 1 – July 20
ElmhurstMay 10 – June 1June 1 – July 20
Elmwood ParkMay 10 – June 1June 1 – July 20
EvanstonMay 15 – June 10June 1 – July 10
Evergreen ParkMay 1 – June 1June 1 – July 20
Fairview HeightsMay 1 – June 1June 1 – July 20
Forest ParkMay 1 – June 1June 1 – July 20
Fox LakeMay 10 – June 1June 1 – July 10
FrankfortMay 10 – June 1June 1 – July 10
Franklin ParkMay 10 – June 1June 1 – July 20
FreeportMay 15 – June 10June 1 – July 1
GalesburgMay 10 – June 1June 1 – July 10
GenevaMay 10 – June 1June 1 – July 10
Glen CarbonApr 15 – June 1June 1 – Aug 1
Glen EllynMay 15 – June 10June 1 – July 10
Glendale HeightsMay 15 – June 10June 1 – July 10
GlenviewMay 15 – June 10June 1 – July 10
GodfreyApr 15 – June 1June 1 – Aug 1
Granite CityApr 15 – June 1June 1 – Aug 1
GrayslakeMay 15 – June 10June 1 – July 10
GurneeMay 15 – June 10June 1 – July 10
Hanover ParkMay 15 – June 10June 1 – July 1
HarveyMay 10 – June 1June 1 – July 10
Hazel CrestMay 10 – June 1June 1 – July 10
HerrinMay 1 – June 1June 1 – July 10
Hickory HillsMay 10 – June 1June 1 – July 10
HighlandMay 1 – June 1June 1 – July 10
Highland ParkMay 15 – June 10June 1 – July 10
HinsdaleMay 10 – June 1June 1 – July 10
Hoffman EstatesMay 15 – June 10June 1 – July 1
Homer GlenMay 10 – June 1June 1 – July 10
HomewoodMay 10 – June 1June 1 – July 10
HuntleyMay 10 – June 1June 1 – July 10
JacksonvilleMay 10 – June 1June 1 – July 10
JolietMay 10 – June 1June 1 – July 10
JusticeMay 1 – June 1June 1 – July 20
KankakeeMay 10 – June 1June 1 – July 10
KewaneeMay 10 – June 1June 1 – July 10
La GrangeMay 1 – June 1June 1 – July 20
La Grange ParkMay 1 – June 1June 1 – July 20
Lake ForestMay 15 – June 10June 1 – July 10
Lake in the HillsMay 10 – June 1June 1 – July 10
Lake ZurichMay 15 – June 10June 1 – July 10
LansingMay 10 – June 1June 1 – July 10
LemontMay 10 – June 1June 1 – July 10
LibertyvilleMay 15 – June 10June 1 – July 10
LincolnMay 10 – June 1June 1 – July 10
LincolnwoodMay 15 – June 10June 1 – July 10
LindenhurstMay 10 – June 1June 1 – July 10
LisleMay 15 – June 10June 1 – July 10
LockportMay 10 – June 1June 1 – July 10
LombardMay 15 – June 10June 1 – July 10
Loves ParkMay 10 – June 1June 1 – July 10
LyonsMay 1 – June 1June 1 – July 20
Machesney ParkMay 15 – June 10June 1 – July 1
MacombMay 10 – June 1June 1 – July 10
MahometMay 10 – June 1June 1 – July 1
ManhattanMay 10 – June 1June 1 – July 10
MarionMay 1 – June 1June 1 – July 10
MarkhamMay 10 – June 1June 1 – July 10
MattesonMay 10 – June 1June 1 – July 10
MattoonMay 1 – June 1June 1 – July 20
MaywoodMay 1 – June 1June 1 – July 20
McHenryMay 15 – June 10June 1 – July 1
Melrose ParkMay 10 – June 1June 1 – July 20
MidlothianMay 1 – June 1June 1 – July 20
MinookaMay 10 – June 1June 1 – July 20
MokenaMay 10 – June 1June 1 – July 10
MolineMay 10 – June 1June 1 – July 10
MontgomeryMay 10 – June 1June 1 – July 10
MorrisMay 10 – June 1June 1 – July 10
MortonMay 10 – June 1June 1 – July 10
Morton GroveMay 15 – June 10June 1 – July 10
Mount ProspectMay 10 – June 1June 1 – July 20
Mount VernonMay 1 – June 1June 1 – July 10
MundeleinMay 15 – June 10June 1 – July 10
NapervilleMay 15 – June 10June 1 – July 10
New LenoxMay 10 – June 1June 1 – July 10
NilesMay 10 – June 1June 1 – July 20
NormalMay 10 – June 1June 1 – July 10
NorridgeMay 10 – June 1June 1 – July 20
North AuroraMay 10 – June 1June 1 – July 10
North ChicagoMay 15 – June 10June 1 – July 10
NorthbrookMay 15 – June 10June 1 – July 10
NorthlakeMay 10 – June 1June 1 – July 20
O'FallonMay 1 – June 1June 1 – July 10
Oak ForestMay 10 – June 1June 1 – July 10
Oak LawnMay 1 – June 1June 1 – July 20
Oak ParkMay 1 – June 1June 1 – July 20
Orland ParkMay 10 – June 1June 1 – July 10
OswegoMay 10 – June 1June 1 – July 10
OttawaMay 15 – June 10June 1 – July 10
PalatineMay 10 – June 1June 1 – July 10
Palos HeightsMay 1 – June 1June 1 – July 20
Palos HillsMay 10 – June 1June 1 – July 10
Park ForestMay 10 – June 1June 1 – July 10
Park RidgeMay 10 – June 1June 1 – July 20
PekinMay 10 – June 1June 1 – July 10
PeoriaMay 10 – June 1June 1 – July 10
Pingree GroveMay 15 – June 10June 1 – July 10
PlainfieldMay 10 – June 1June 1 – July 10
PlanoMay 15 – June 10June 1 – July 1
PontiacMay 10 – June 1June 1 – July 10
Prospect HeightsMay 10 – June 1June 1 – July 20
QuincyMay 1 – June 1June 1 – July 20
RantoulMay 10 – June 1June 1 – July 10
Richton ParkMay 10 – June 1June 1 – July 10
River ForestMay 1 – June 1June 1 – July 20
River GroveMay 10 – June 1June 1 – July 20
RiverdaleMay 1 – June 1June 1 – July 20
Rock IslandMay 10 – June 1June 1 – July 10
RockfordMay 10 – June 1June 1 – July 10
Rolling MeadowsMay 10 – June 1June 1 – July 20
RomeovilleMay 10 – June 1June 1 – July 10
RoscoeMay 15 – June 10June 1 – July 1
RoselleMay 15 – June 10June 1 – July 1
Round LakeMay 15 – June 10June 1 – July 10
Round Lake BeachMay 10 – June 1June 1 – July 10
SchaumburgMay 15 – June 10June 1 – July 1
Schiller ParkMay 10 – June 1June 1 – July 20
ShilohMay 1 – June 1June 1 – July 10
ShorewoodMay 10 – June 1June 1 – July 10
SkokieMay 15 – June 10June 1 – July 10
South ElginMay 15 – June 10June 1 – July 10
South HollandMay 10 – June 1June 1 – July 10
SpringfieldMay 1 – June 1June 1 – July 10
St. CharlesMay 10 – June 1June 1 – July 10
SterlingMay 10 – June 1June 1 – July 10
StreamwoodMay 15 – June 10June 1 – July 1
StreatorMay 1 – June 1June 1 – July 20
SummitMay 1 – June 1June 1 – July 20
SwanseaMay 1 – June 1June 1 – July 10
SycamoreMay 10 – June 1June 1 – July 10
TaylorvilleMay 1 – June 1June 1 – July 10
Tinley ParkMay 10 – June 1June 1 – July 10
TroyMay 1 – June 1June 1 – July 10
UrbanaMay 1 – June 1June 1 – July 10
Vernon HillsMay 15 – June 10June 1 – July 10
Villa ParkMay 15 – June 10June 1 – July 10
WarrenvilleMay 15 – June 10June 1 – July 10
WashingtonMay 10 – June 1June 1 – July 10
WaterlooMay 1 – June 1June 1 – July 20
WaucondaMay 15 – June 10June 1 – July 10
WaukeganMay 15 – June 10June 1 – July 10
West ChicagoMay 10 – June 1June 1 – July 10
WestchesterMay 1 – June 1June 1 – July 20
Western SpringsMay 10 – June 1June 1 – July 10
WestmontMay 15 – June 10June 1 – July 10
WheatonMay 15 – June 10June 1 – July 10
WheelingMay 10 – June 1June 1 – July 20
WilmetteMay 15 – June 10June 1 – July 10
WinfieldMay 10 – June 1June 1 – July 10
WinnetkaMay 15 – June 10June 1 – July 10
Wood DaleMay 10 – June 1June 1 – July 20
Wood RiverApr 15 – June 1June 1 – Aug 1
WoodridgeMay 15 – June 10June 1 – July 10
WoodstockMay 10 – June 1June 1 – July 10
WorthMay 1 – June 1June 1 – July 20
YorkvilleMay 15 – June 10June 1 – July 1
ZionMay 15 – June 10June 1 – July 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 peppers.