When to plant Peppers in Colorado

In spring, from May 1 – June 1 in Grand Junction to May 25 – June 15 in Monument.

In fall, June 1 – July 1.

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 Colorado
PlaceSpringFall
ArvadaMay 15 – June 10June 1 – July 1
AuroraMay 20 – June 10June 1 – July 1
BerthoudMay 20 – June 10June 1 – July 1
BoulderMay 20 – June 10June 1 – July 1
BrightonMay 15 – June 10June 1 – July 1
BroomfieldMay 15 – June 10June 1 – July 1
Cañon CityMay 15 – June 10June 1 – July 1
Castle PinesMay 20 – June 10June 1 – July 1
Castle RockMay 20 – June 10June 1 – July 1
CentennialMay 15 – June 10June 1 – July 1
Colorado SpringsMay 15 – June 10June 1 – July 1
Commerce CityMay 15 – June 10June 1 – July 1
DenverMay 15 – June 10June 1 – July 1
DurangoMay 25 – June 15June 1 – July 1
EnglewoodMay 15 – June 10June 1 – July 1
ErieMay 20 – June 10June 1 – July 1
EvansMay 15 – June 10June 1 – July 1
Federal HeightsMay 15 – June 10June 1 – July 1
FirestoneMay 20 – June 10June 1 – July 1
Fort CollinsMay 15 – June 10June 1 – July 1
Fort MorganMay 20 – June 10June 1 – July 1
FountainMay 15 – June 10June 1 – July 1
FrederickMay 20 – June 10June 1 – July 1
FruitaMay 15 – June 10June 1 – July 1
Glenwood SpringsMay 20 – June 10June 1 – July 1
GoldenMay 15 – June 10June 1 – July 1
Grand JunctionMay 1 – June 1June 1 – July 10
GreeleyMay 15 – June 10June 1 – July 1
Greenwood VillageMay 20 – June 10June 1 – July 1
JohnstownMay 20 – June 10June 1 – July 1
LafayetteMay 15 – June 10June 1 – July 1
LakewoodMay 15 – June 10June 1 – July 1
LittletonMay 15 – June 10June 1 – July 1
Lone TreeMay 15 – June 10June 1 – July 1
LongmontMay 20 – June 10June 1 – July 1
LouisvilleMay 20 – June 10June 1 – July 1
LovelandMay 20 – June 10June 1 – July 1
MontroseMay 15 – June 10June 1 – July 1
MonumentMay 25 – June 15June 1 – July 1
NorthglennMay 15 – June 10June 1 – July 1
ParkerMay 20 – June 10June 1 – July 1
PuebloMay 15 – June 10June 1 – July 1
RifleMay 20 – June 10June 1 – July 1
SeveranceMay 15 – June 10June 1 – July 1
Steamboat SpringsNot listedNot listed
SterlingMay 15 – June 10June 1 – July 1
SuperiorMay 20 – June 10June 1 – July 1
ThorntonMay 15 – June 10June 1 – July 1
TimnathMay 15 – June 10June 1 – July 1
WellingtonMay 15 – June 10June 1 – July 1
WestminsterMay 15 – June 10June 1 – July 1
Wheat RidgeMay 15 – June 10June 1 – July 1
WindsorMay 15 – June 10June 1 – July 1

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.