When to plant Potatoes in Colorado

In spring, from Mar 10 – Apr 1 in Grand Junction to May 15 – June 1 in Steamboat Springs.

In fall, from May 1 – June 15 in Arvada to June 15 – July 15 in Grand Junction.

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

Potatoes planting dates by place in Colorado
PlaceSpringFall
ArvadaMar 20 – May 10May 1 – June 15
AuroraApr 1 – June 1May 15 – June 15
BerthoudApr 1 – June 1May 1 – June 15
BoulderApr 1 – June 1May 1 – June 15
BrightonMar 20 – May 10May 15 – June 15
BroomfieldMar 20 – May 10May 15 – June 15
Cañon CityMar 20 – May 10May 15 – June 15
Castle PinesApr 1 – June 1May 1 – June 15
Castle RockApr 1 – June 1May 1 – June 15
CentennialMar 20 – May 10May 15 – June 15
Colorado SpringsMar 20 – May 10May 15 – June 15
Commerce CityMar 20 – May 10May 15 – June 15
DenverMar 20 – May 10May 15 – June 15
DurangoApr 15 – June 15May 1 – June 15
EnglewoodMar 20 – May 10May 15 – June 15
ErieApr 1 – June 1May 1 – June 15
EvansMar 20 – May 10May 15 – June 15
Federal HeightsMar 20 – May 10May 15 – June 15
FirestoneApr 1 – June 1May 1 – June 15
Fort CollinsMar 20 – May 10May 15 – June 15
Fort MorganApr 1 – June 1May 15 – June 15
FountainMar 20 – May 10May 15 – June 15
FrederickApr 1 – June 1May 1 – June 15
FruitaMar 20 – May 10May 15 – June 15
Glenwood SpringsApr 1 – June 1May 1 – June 15
GoldenMar 20 – May 10May 15 – June 15
Grand JunctionMar 10 – Apr 1June 15 – July 15
GreeleyMar 20 – May 10May 15 – June 15
Greenwood VillageApr 1 – June 1May 15 – June 15
JohnstownApr 1 – June 1May 1 – June 15
LafayetteMar 20 – May 10May 15 – June 15
LakewoodMar 20 – May 10May 15 – June 15
LittletonMar 20 – May 10May 15 – June 15
Lone TreeMar 20 – May 10May 15 – June 15
LongmontApr 1 – June 1May 1 – June 15
LouisvilleApr 1 – June 1May 1 – June 15
LovelandApr 1 – June 1May 1 – June 15
MontroseMar 20 – May 10May 15 – June 15
MonumentApr 15 – June 15May 1 – June 15
NorthglennMar 20 – May 10May 15 – June 15
ParkerApr 1 – June 1May 1 – June 15
PuebloMar 20 – May 10May 15 – June 15
RifleApr 1 – June 1May 1 – June 15
SeveranceMar 20 – May 10May 15 – June 15
Steamboat SpringsMay 15 – June 1May 1 – June 15
SterlingMar 20 – May 10May 15 – June 15
SuperiorApr 1 – June 1May 1 – June 15
ThorntonMar 20 – May 10May 15 – June 15
TimnathMar 20 – May 10May 15 – June 15
WellingtonMar 20 – May 10May 15 – June 15
WestminsterMar 20 – May 10May 15 – June 15
Wheat RidgeMar 20 – May 10May 1 – June 15
WindsorMar 20 – May 10May 15 – June 15

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 potatoes.