When to plant celery in Montana

Celery
Plant out in Billings
May 11–May 18

Across Montana the window opens between May 11 and June 20. Find your city below; the dates follow each town's own average last frost.

Start indoors, Billings
Feb 9–Feb 23
Plant out, Billings
May 11–May 18
Last frost, Billings
May 4

Start seeds indoors 10–12 weeks before the last frost; plant out 1–2 weeks after the last frost. Celery needs steady moisture all season.

Celery planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
BillingsMay 11–May 18
MissoulaMay 17–May 24
Great FallsMay 13–May 20
BozemanJun 2–Jun 9
Butte-Silver BowJun 20–Jun 27
HelenaMay 16–May 23
KalispellJun 7–Jun 14

Questions

When should I plant celery in Montana?

In Billings, plant out from May 11 to May 18. Across Montana the window opens between May 11 and June 20, depending on the local last frost.

How is this date worked out?

Start seeds indoors 10–12 weeks before the last frost; plant out 1–2 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Montana

Celery in other states

Frost dates for every city in Montana