When to plant asparagus in Colorado

Asparagus
Plant out in Denver
Apr 6–Apr 20

Across Colorado the window opens between March 17 and April 12. Find your city below; the dates follow each town's own average last frost.

Plant out, Denver
Apr 6–Apr 20
Last frost, Denver
May 4

Set out crowns 2–4 weeks before the last frost. Asparagus crowns produce for 15–20 years. Harvest lightly in the third spring.

Asparagus planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
DenverApr 6–Apr 20
Colorado SpringsApr 5–Apr 19
AuroraApr 9–Apr 23
Fort CollinsApr 4–Apr 18
LakewoodApr 5–Apr 19
ThorntonApr 4–Apr 18
ArvadaApr 7–Apr 21
WestminsterApr 4–Apr 18
GreeleyApr 4–Apr 18
PuebloApr 2–Apr 16
CentennialApr 7–Apr 21
BoulderApr 8–Apr 22
LongmontApr 9–Apr 23
LovelandApr 12–Apr 26
BroomfieldApr 4–Apr 18
Commerce CityApr 5–Apr 19
Grand JunctionMar 17–Mar 31
LittletonApr 4–Apr 18
BrightonApr 5–Apr 19
WindsorApr 5–Apr 19
ErieApr 9–Apr 23
NorthglennApr 4–Apr 18
Security-WidefieldApr 5–Apr 19
EnglewoodApr 4–Apr 18
Pueblo WestMar 29–Apr 12
Wheat RidgeApr 7–Apr 21
LafayetteApr 4–Apr 18
FountainApr 5–Apr 19
EvansApr 4–Apr 18
JohnstownApr 12–Apr 26
All 34 cities
CityPlant outLast frost
DenverApr 6 to Apr 20May 4
Colorado SpringsApr 5 to Apr 19May 3
AuroraApr 9 to Apr 23May 7
Fort CollinsApr 4 to Apr 18May 2
LakewoodApr 5 to Apr 19May 3
ThorntonApr 4 to Apr 18May 2
ArvadaApr 7 to Apr 21May 5
WestminsterApr 4 to Apr 18May 2
GreeleyApr 4 to Apr 18May 2
PuebloApr 2 to Apr 16Apr 30
CentennialApr 7 to Apr 21May 5
BoulderApr 8 to Apr 22May 6
LongmontApr 9 to Apr 23May 7
LovelandApr 12 to Apr 26May 10
BroomfieldApr 4 to Apr 18May 2
Commerce CityApr 5 to Apr 19May 3
Grand JunctionMar 17 to Mar 31Apr 14
LittletonApr 4 to Apr 18May 2
BrightonApr 5 to Apr 19May 3
WindsorApr 5 to Apr 19May 3
ErieApr 9 to Apr 23May 7
NorthglennApr 4 to Apr 18May 2
Security-WidefieldApr 5 to Apr 19May 3
EnglewoodApr 4 to Apr 18May 2
Pueblo WestMar 29 to Apr 12Apr 26
Wheat RidgeApr 7 to Apr 21May 5
LafayetteApr 4 to Apr 18May 2
FountainApr 5 to Apr 19May 3
EvansApr 4 to Apr 18May 2
JohnstownApr 12 to Apr 26May 10
Four Square MileApr 9 to Apr 23May 7
MontroseMar 31 to Apr 14Apr 28
LouisvilleApr 8 to Apr 22May 6
FirestoneApr 9 to Apr 23May 7

Questions

When should I plant asparagus in Colorado?

In Denver, plant out from April 6 to April 20. Across Colorado the window opens between March 17 and April 12, depending on the local last frost.

How is this date worked out?

Set out crowns 2–4 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Colorado

Asparagus in other states

Frost dates for every city in Colorado