When to plant carrots in Idaho

Carrots
Sow outdoors in Boise City
Apr 3–May 8

Across Idaho the window opens between March 16 and April 21. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Boise City
Apr 3–May 8
Fall planting, Boise City
Jul 29–Aug 12
Last frost, Boise City
Apr 24

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
Boise CityApr 3–May 8
MeridianApr 3–May 8
NampaApr 8–May 13
CaldwellApr 8–May 13
Idaho FallsApr 18–May 23
PocatelloApr 11–May 16
Coeur d'AleneApr 1–May 6
Twin FallsApr 9–May 14
Post FallsApr 1–May 6
RexburgApr 21–May 26
LewistonMar 16–Apr 20
EagleApr 8–May 13
KunaApr 3–May 8
StarApr 8–May 13
AmmonApr 18–May 23

Questions

When should I plant carrots in Idaho?

In Boise City, sow outdoors from April 3 to May 8. Across Idaho the window opens between March 16 and April 21, 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 Idaho

Carrots in other states

Frost dates for every city in Idaho