When to Plant White Mustard in Zone 9
In USDA zone 9a, plant outdoors March 8 to May 27, and expect your first harvest around May 27. (9a shown here — see 9a and 9b dates separately below.)
White Mustard planting calendar for USDA Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
Direct sow
Mar 8
Projected first harvest
May 27
White Mustard is ready to harvest in about 80 days, needing roughly 275 frost-free days in zone 9a.
White Mustard planting calendar for USDA Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
Direct sow
Feb 22
Projected first harvest
May 13
White Mustard is ready to harvest in about 80 days, needing roughly 303 frost-free days in zone 9b.
Not sure whether you're in 9a or 9b? 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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