When to plant cilantro in Idaho

Cilantro
Sow outdoors in Boise City
Apr 10–May 1

Across Idaho the window opens between March 23 and April 28. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Boise City
Apr 10–May 1
Fall planting, Boise City
Aug 26–Sep 9
Last frost, Boise City
Apr 24

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
Boise CityApr 10–May 1
MeridianApr 10–May 1
NampaApr 15–May 6
CaldwellApr 15–May 6
Idaho FallsApr 25–May 16
PocatelloApr 18–May 9
Coeur d'AleneApr 8–Apr 29
Twin FallsApr 16–May 7
Post FallsApr 8–Apr 29
RexburgApr 28–May 19
LewistonMar 23–Apr 13
EagleApr 15–May 6
KunaApr 10–May 1
StarApr 15–May 6
AmmonApr 25–May 16

Questions

When should I plant cilantro in Idaho?

In Boise City, sow outdoors from April 10 to May 1. Across Idaho the window opens between March 23 and April 28, 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 Idaho

Cilantro in other states

Frost dates for every city in Idaho