When to Plant White Mustard in Idaho
Idaho spans USDA hardiness 4a to 7b (zones 4a to 7b on this page). Plant white mustard by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 4a · Zone 4b · Zone 5a · Zone 5b · Zone 6a · Zone 6b · Zone 7a · Zone 7b
White Mustard planting calendar for Idaho, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
Direct sow
May 22
Projected first harvest
Aug 10
White Mustard is ready to harvest in about 80 days. Full zone 4 guide (both 4a and 4b) →
White Mustard planting calendar for Idaho, Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
Direct sow
May 17
Projected first harvest
Aug 5
White Mustard is ready to harvest in about 80 days. Full zone 4 guide (both 4a and 4b) →
White Mustard planting calendar for Idaho, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
Direct sow
May 12
Projected first harvest
Jul 31
White Mustard is ready to harvest in about 80 days. Full zone 5 guide (both 5a and 5b) →
White Mustard planting calendar for Idaho, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Direct sow
May 7
Projected first harvest
Jul 26
White Mustard is ready to harvest in about 80 days. Full zone 5 guide (both 5a and 5b) →
White Mustard planting calendar for Idaho, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Direct sow
May 2
Projected first harvest
Jul 21
White Mustard is ready to harvest in about 80 days. Full zone 6 guide (both 6a and 6b) →
White Mustard planting calendar for Idaho, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Direct sow
Apr 27
Projected first harvest
Jul 16
White Mustard is ready to harvest in about 80 days. Full zone 6 guide (both 6a and 6b) →
White Mustard planting calendar for Idaho, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
Direct sow
Apr 22
Projected first harvest
Jul 11
White Mustard is ready to harvest in about 80 days. Full zone 7 guide (both 7a and 7b) →
White Mustard planting calendar for Idaho, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Direct sow
Apr 17
Projected first harvest
Jul 6
White Mustard is ready to harvest in about 80 days. Full zone 7 guide (both 7a and 7b) →
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 white mustard in the HomeSown library. Tap any for its full grow guide.
Common problems with white mustard
What to watch for, with identification and treatment for each
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