When to plant Eggplant in Colorado

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

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

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.

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