When to plant cilantro in Colorado

Cilantro
Sow outdoors in Denver
Apr 20–May 11

Across Colorado the window opens between March 31 and April 26. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Denver
Apr 20–May 11
Fall planting, Denver
Aug 13–Aug 27
Last frost, Denver
May 4

Sow outdoors from 2 weeks before to 1 weeks after the last frost; sow again for fall 6–8 weeks before the first frost. Cilantro goes to seed quickly in warm weather. Sow small amounts often.

Cilantro planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
DenverApr 20–May 11
Colorado SpringsApr 19–May 10
AuroraApr 23–May 14
Fort CollinsApr 18–May 9
LakewoodApr 19–May 10
ThorntonApr 18–May 9
ArvadaApr 21–May 12
WestminsterApr 18–May 9
GreeleyApr 18–May 9
PuebloApr 16–May 7
CentennialApr 21–May 12
BoulderApr 22–May 13
LongmontApr 23–May 14
LovelandApr 26–May 17
BroomfieldApr 18–May 9
Commerce CityApr 19–May 10
Grand JunctionMar 31–Apr 21
LittletonApr 18–May 9
BrightonApr 19–May 10
WindsorApr 19–May 10
ErieApr 23–May 14
NorthglennApr 18–May 9
Security-WidefieldApr 19–May 10
EnglewoodApr 18–May 9
Pueblo WestApr 12–May 3
Wheat RidgeApr 21–May 12
LafayetteApr 18–May 9
FountainApr 19–May 10
EvansApr 18–May 9
JohnstownApr 26–May 17
All 34 cities
CitySow outdoorsFall plantingLast frost
DenverApr 20 to May 11Aug 13 to Aug 27May 4
Colorado SpringsApr 19 to May 10Aug 13 to Aug 27May 3
AuroraApr 23 to May 14Aug 13 to Aug 27May 7
Fort CollinsApr 18 to May 9Aug 12 to Aug 26May 2
LakewoodApr 19 to May 10Aug 12 to Aug 26May 3
ThorntonApr 18 to May 9Aug 16 to Aug 30May 2
ArvadaApr 21 to May 12Aug 10 to Aug 24May 5
WestminsterApr 18 to May 9Aug 16 to Aug 30May 2
GreeleyApr 18 to May 9Aug 13 to Aug 27May 2
PuebloApr 16 to May 7Aug 14 to Aug 28Apr 30
CentennialApr 21 to May 12Aug 13 to Aug 27May 5
BoulderApr 22 to May 13Aug 10 to Aug 24May 6
LongmontApr 23 to May 14Aug 10 to Aug 24May 7
LovelandApr 26 to May 17May 10
BroomfieldApr 18 to May 9Aug 16 to Aug 30May 2
Commerce CityApr 19 to May 10Aug 12 to Aug 26May 3
Grand JunctionMar 31 to Apr 21Aug 28 to Sep 11Apr 14
LittletonApr 18 to May 9Aug 16 to Aug 30May 2
BrightonApr 19 to May 10Aug 12 to Aug 26May 3
WindsorApr 19 to May 10Aug 11 to Aug 25May 3
ErieApr 23 to May 14Aug 10 to Aug 24May 7
NorthglennApr 18 to May 9Aug 16 to Aug 30May 2
Security-WidefieldApr 19 to May 10Aug 13 to Aug 27May 3
EnglewoodApr 18 to May 9Aug 16 to Aug 30May 2
Pueblo WestApr 12 to May 3Aug 18 to Sep 1Apr 26
Wheat RidgeApr 21 to May 12Aug 10 to Aug 24May 5
LafayetteApr 18 to May 9Aug 16 to Aug 30May 2
FountainApr 19 to May 10Aug 13 to Aug 27May 3
EvansApr 18 to May 9Aug 13 to Aug 27May 2
JohnstownApr 26 to May 17May 10
Four Square MileApr 23 to May 14Aug 13 to Aug 27May 7
MontroseApr 14 to May 5Aug 19 to Sep 2Apr 28
LouisvilleApr 22 to May 13Aug 10 to Aug 24May 6
FirestoneApr 23 to May 14Aug 10 to Aug 24May 7

Questions

When should I plant cilantro in Colorado?

In Denver, sow outdoors from April 20 to May 11. Across Colorado the window opens between March 31 and April 26, depending on the local last frost.

How is this date worked out?

Sow outdoors from 2 weeks before to 1 weeks after the last frost; sow again for fall 6–8 weeks before the first frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Colorado

Cilantro in other states

Frost dates for every city in Colorado