When to Plant Scallions in Montana
Montana spans USDA hardiness 3b to 6b (zones 3b to 6b on this page). Plant scallions by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 3b · Zone 4a · Zone 4b · Zone 5a · Zone 5b · Zone 6a · Zone 6b
Scallions planting calendar for Montana, Zone 3b
Average last spring frost
May 20
Average first fall frost
September 15
Direct sow
Apr 22
Projected first harvest
Jun 21
Scallions is ready to harvest in about 60 days. Full zone 3 guide (both 3a and 3b) →
Scallions planting calendar for Montana, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
Direct sow
Apr 17
Projected first harvest
Jun 16
Scallions is ready to harvest in about 60 days. Full zone 4 guide (both 4a and 4b) →
Scallions planting calendar for Montana, Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
Direct sow
Apr 12
Projected first harvest
Jun 11
Scallions is ready to harvest in about 60 days. Full zone 4 guide (both 4a and 4b) →
Scallions planting calendar for Montana, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
Direct sow
Apr 7
Projected first harvest
Jun 6
Scallions is ready to harvest in about 60 days. Full zone 5 guide (both 5a and 5b) →
Scallions planting calendar for Montana, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Direct sow
Apr 2
Projected first harvest
Jun 1
Scallions is ready to harvest in about 60 days. Full zone 5 guide (both 5a and 5b) →
Scallions planting calendar for Montana, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Direct sow
Mar 28
Projected first harvest
May 27
Scallions is ready to harvest in about 60 days. Full zone 6 guide (both 6a and 6b) →
Scallions planting calendar for Montana, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Direct sow
Mar 23
Projected first harvest
May 22
Scallions is ready to harvest in about 60 days. Full zone 6 guide (both 6a and 6b) →
Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
1 variety of scallions in the HomeSown library. Tap any for its full grow guide.
Common problems with scallions
What to watch for, with identification and treatment for each
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