When to plant carrots in Montana

Carrots
Sow outdoors in Billings
Apr 13–May 18

Across Montana the window opens between April 13 and May 23. Find your city below; the dates follow each town's own average last frost.

Sow outdoors, Billings
Apr 13–May 18
Fall planting, Billings
Jul 15–Jul 29
Last frost, Billings
May 4

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
BillingsApr 13–May 18
MissoulaApr 19–May 24
Great FallsApr 15–May 20
BozemanMay 5–Jun 9
Butte-Silver BowMay 23–Jun 27
HelenaApr 18–May 23
KalispellMay 10–Jun 14

Questions

When should I plant carrots in Montana?

In Billings, sow outdoors from April 13 to May 18. Across Montana the window opens between April 13 and May 23, 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 Montana

Carrots in other states

Frost dates for every city in Montana