When to plant parsley in Montana

Parsley
Plant out in Billings
Apr 20–May 11

Across Montana the window opens between April 20 and May 30. Find your city below; the dates follow each town's own average last frost.

Start indoors, Billings
Feb 23–Mar 9
Plant out, Billings
Apr 20–May 11
Sow outdoors, Billings
Apr 13–May 4
Last frost, Billings
May 4

Start seeds indoors 8–10 weeks before the last frost; plant out from 2 weeks before to 1 weeks after the last frost; sow outdoors up to 3 weeks before the last frost. Soaking seed overnight helps slow-sprouting parsley.

Parsley planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
BillingsApr 20–May 11
MissoulaApr 26–May 17
Great FallsApr 22–May 13
BozemanMay 12–Jun 2
Butte-Silver BowMay 30–Jun 20
HelenaApr 25–May 16
KalispellMay 17–Jun 7

Questions

When should I plant parsley in Montana?

In Billings, plant out from April 20 to May 11. Across Montana the window opens between April 20 and May 30, depending on the local last frost.

How is this date worked out?

Start seeds indoors 8–10 weeks before the last frost; plant out from 2 weeks before to 1 weeks after the last frost; sow outdoors up to 3 weeks before the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

More for Montana

Parsley in other states

Frost dates for every city in Montana