When to plant carrots in Colorado

Carrots
Sow outdoors in Denver
Apr 13–May 18

Across Colorado the window opens between March 24 and April 19. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Denver
Apr 13–May 18
Fall planting, Denver
Jul 16–Jul 30
Last frost, Denver
May 4

Sow outdoors from 3 weeks before to 2 weeks after the last frost; sow again for fall 10–12 weeks before the first frost. Keep the seedbed moist until carrots come up. They can take two to three weeks to sprout.

Carrots planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
DenverApr 13–May 18
Colorado SpringsApr 12–May 17
AuroraApr 16–May 21
Fort CollinsApr 11–May 16
LakewoodApr 12–May 17
ThorntonApr 11–May 16
ArvadaApr 14–May 19
WestminsterApr 11–May 16
GreeleyApr 11–May 16
PuebloApr 9–May 14
CentennialApr 14–May 19
BoulderApr 15–May 20
LongmontApr 16–May 21
LovelandApr 19–May 24
BroomfieldApr 11–May 16
Commerce CityApr 12–May 17
Grand JunctionMar 24–Apr 28
LittletonApr 11–May 16
BrightonApr 12–May 17
WindsorApr 12–May 17
ErieApr 16–May 21
NorthglennApr 11–May 16
Security-WidefieldApr 12–May 17
EnglewoodApr 11–May 16
Pueblo WestApr 5–May 10
Wheat RidgeApr 14–May 19
LafayetteApr 11–May 16
FountainApr 12–May 17
EvansApr 11–May 16
JohnstownApr 19–May 24
All 34 cities
CitySow outdoorsFall plantingLast frost
DenverApr 13 to May 18Jul 16 to Jul 30May 4
Colorado SpringsApr 12 to May 17Jul 16 to Jul 30May 3
AuroraApr 16 to May 21Jul 16 to Jul 30May 7
Fort CollinsApr 11 to May 16Jul 15 to Jul 29May 2
LakewoodApr 12 to May 17Jul 15 to Jul 29May 3
ThorntonApr 11 to May 16Jul 19 to Aug 2May 2
ArvadaApr 14 to May 19Jul 13 to Jul 27May 5
WestminsterApr 11 to May 16Jul 19 to Aug 2May 2
GreeleyApr 11 to May 16Jul 16 to Jul 30May 2
PuebloApr 9 to May 14Jul 17 to Jul 31Apr 30
CentennialApr 14 to May 19Jul 16 to Jul 30May 5
BoulderApr 15 to May 20Jul 13 to Jul 27May 6
LongmontApr 16 to May 21Jul 13 to Jul 27May 7
LovelandApr 19 to May 24May 10
BroomfieldApr 11 to May 16Jul 19 to Aug 2May 2
Commerce CityApr 12 to May 17Jul 15 to Jul 29May 3
Grand JunctionMar 24 to Apr 28Jul 31 to Aug 14Apr 14
LittletonApr 11 to May 16Jul 19 to Aug 2May 2
BrightonApr 12 to May 17Jul 15 to Jul 29May 3
WindsorApr 12 to May 17Jul 14 to Jul 28May 3
ErieApr 16 to May 21Jul 13 to Jul 27May 7
NorthglennApr 11 to May 16Jul 19 to Aug 2May 2
Security-WidefieldApr 12 to May 17Jul 16 to Jul 30May 3
EnglewoodApr 11 to May 16Jul 19 to Aug 2May 2
Pueblo WestApr 5 to May 10Jul 21 to Aug 4Apr 26
Wheat RidgeApr 14 to May 19Jul 13 to Jul 27May 5
LafayetteApr 11 to May 16Jul 19 to Aug 2May 2
FountainApr 12 to May 17Jul 16 to Jul 30May 3
EvansApr 11 to May 16Jul 16 to Jul 30May 2
JohnstownApr 19 to May 24May 10
Four Square MileApr 16 to May 21Jul 16 to Jul 30May 7
MontroseApr 7 to May 12Jul 22 to Aug 5Apr 28
LouisvilleApr 15 to May 20Jul 13 to Jul 27May 6
FirestoneApr 16 to May 21Jul 13 to Jul 27May 7

Questions

When should I plant carrots in Colorado?

In Denver, sow outdoors from April 13 to May 18. Across Colorado the window opens between March 24 and April 19, depending on the local last frost.

How is this date worked out?

Sow outdoors from 3 weeks before to 2 weeks after the last frost; sow again for fall 10–12 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Colorado

Carrots in other states

Frost dates for every city in Colorado