When to plant dill in Colorado

Dill
Sow outdoors in Denver
May 4–May 18

Across Colorado the window opens between April 14 and May 10. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Denver
May 4–May 18
Last frost, Denver
May 4

Sow outdoors up to 2 weeks after the last frost. Dill does not like being transplanted. Sow it where it will grow.

Dill planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
DenverMay 4–May 18
Colorado SpringsMay 3–May 17
AuroraMay 7–May 21
Fort CollinsMay 2–May 16
LakewoodMay 3–May 17
ThorntonMay 2–May 16
ArvadaMay 5–May 19
WestminsterMay 2–May 16
GreeleyMay 2–May 16
PuebloApr 30–May 14
CentennialMay 5–May 19
BoulderMay 6–May 20
LongmontMay 7–May 21
LovelandMay 10–May 24
BroomfieldMay 2–May 16
Commerce CityMay 3–May 17
Grand JunctionApr 14–Apr 28
LittletonMay 2–May 16
BrightonMay 3–May 17
WindsorMay 3–May 17
ErieMay 7–May 21
NorthglennMay 2–May 16
Security-WidefieldMay 3–May 17
EnglewoodMay 2–May 16
Pueblo WestApr 26–May 10
Wheat RidgeMay 5–May 19
LafayetteMay 2–May 16
FountainMay 3–May 17
EvansMay 2–May 16
JohnstownMay 10–May 24
All 34 cities
CitySow outdoorsLast frost
DenverMay 4 to May 18May 4
Colorado SpringsMay 3 to May 17May 3
AuroraMay 7 to May 21May 7
Fort CollinsMay 2 to May 16May 2
LakewoodMay 3 to May 17May 3
ThorntonMay 2 to May 16May 2
ArvadaMay 5 to May 19May 5
WestminsterMay 2 to May 16May 2
GreeleyMay 2 to May 16May 2
PuebloApr 30 to May 14Apr 30
CentennialMay 5 to May 19May 5
BoulderMay 6 to May 20May 6
LongmontMay 7 to May 21May 7
LovelandMay 10 to May 24May 10
BroomfieldMay 2 to May 16May 2
Commerce CityMay 3 to May 17May 3
Grand JunctionApr 14 to Apr 28Apr 14
LittletonMay 2 to May 16May 2
BrightonMay 3 to May 17May 3
WindsorMay 3 to May 17May 3
ErieMay 7 to May 21May 7
NorthglennMay 2 to May 16May 2
Security-WidefieldMay 3 to May 17May 3
EnglewoodMay 2 to May 16May 2
Pueblo WestApr 26 to May 10Apr 26
Wheat RidgeMay 5 to May 19May 5
LafayetteMay 2 to May 16May 2
FountainMay 3 to May 17May 3
EvansMay 2 to May 16May 2
JohnstownMay 10 to May 24May 10
Four Square MileMay 7 to May 21May 7
MontroseApr 28 to May 12Apr 28
LouisvilleMay 6 to May 20May 6
FirestoneMay 7 to May 21May 7

Questions

When should I plant dill in Colorado?

In Denver, sow outdoors from May 4 to May 18. Across Colorado the window opens between April 14 and May 10, depending on the local last frost.

How is this date worked out?

Sow outdoors up to 2 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Colorado

Dill in other states

Frost dates for every city in Colorado