When to Plant Arugula in Montana
Montana spans USDA hardiness 3b to 6b (zones 3b to 6b on this page). Plant arugula 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
Arugula planting calendar for Montana, Zone 3b
Average last spring frost
May 20
Average first fall frost
September 15
spring planting
Direct sow
May 6
Projected first harvest
Jun 10
fall planting
Direct sow
Jul 28
Projected first harvest
Sep 1
spring planting
fall planting
Arugula is ready to harvest in about 35 days. Full zone 3 guide (both 3a and 3b) →
Arugula planting calendar for Montana, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
spring planting
Direct sow
May 1
Projected first harvest
Jun 5
fall planting
Direct sow
Aug 2
Projected first harvest
Sep 6
spring planting
fall planting
Arugula is ready to harvest in about 35 days. Full zone 4 guide (both 4a and 4b) →
Arugula planting calendar for Montana, Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
spring planting
Direct sow
Apr 26
Projected first harvest
May 31
fall planting
Direct sow
Aug 7
Projected first harvest
Sep 11
spring planting
fall planting
Arugula is ready to harvest in about 35 days. Full zone 4 guide (both 4a and 4b) →
Arugula planting calendar for Montana, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
spring planting
Direct sow
Apr 21
Projected first harvest
May 26
fall planting
Direct sow
Aug 13
Projected first harvest
Sep 17
spring planting
fall planting
Arugula is ready to harvest in about 35 days. Full zone 5 guide (both 5a and 5b) →
Arugula planting calendar for Montana, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
spring planting
Direct sow
Apr 16
Projected first harvest
May 21
fall planting
Direct sow
Aug 17
Projected first harvest
Sep 21
spring planting
fall planting
Arugula is ready to harvest in about 35 days. Full zone 5 guide (both 5a and 5b) →
Arugula planting calendar for Montana, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
spring planting
Direct sow
Apr 11
Projected first harvest
May 16
fall planting
Direct sow
Aug 22
Projected first harvest
Sep 26
spring planting
fall planting
Arugula is ready to harvest in about 35 days. Full zone 6 guide (both 6a and 6b) →
Arugula planting calendar for Montana, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
spring planting
Direct sow
Apr 6
Projected first harvest
May 11
fall planting
Direct sow
Aug 27
Projected first harvest
Oct 1
spring planting
fall planting
Arugula is ready to harvest in about 35 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 arugula in the HomeSown library. Tap any for its full grow guide.
Common problems with arugula
What to watch for, with identification and treatment for each
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