When to Plant Mustard Greens in California
California spans USDA hardiness 5b to 11a (zones 5b to 11a on this page). Plant mustard greens by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 5b · Zone 6a · Zone 6b · Zone 7a · Zone 7b · Zone 8a · Zone 8b · Zone 9a · Zone 9b · Zone 10a · Zone 10b · Zone 11a
Mustard Greens planting calendar for California, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
spring planting
Direct sow
Apr 16
Projected first harvest
May 31
fall planting
Direct sow
Aug 10
Projected first harvest
Sep 24
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 5 guide (both 5a and 5b) →
Mustard Greens planting calendar for California, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
spring planting
Direct sow
Apr 11
Projected first harvest
May 26
fall planting
Direct sow
Aug 15
Projected first harvest
Sep 29
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 6 guide (both 6a and 6b) →
Mustard Greens planting calendar for California, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
spring planting
Direct sow
Apr 6
Projected first harvest
May 21
fall planting
Direct sow
Aug 20
Projected first harvest
Oct 4
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 6 guide (both 6a and 6b) →
Mustard Greens planting calendar for California, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
spring planting
Direct sow
Apr 1
Projected first harvest
May 16
fall planting
Direct sow
Aug 25
Projected first harvest
Oct 9
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 7 guide (both 7a and 7b) →
Mustard Greens planting calendar for California, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
spring planting
Direct sow
Mar 27
Projected first harvest
May 11
fall planting
Direct sow
Sep 4
Projected first harvest
Oct 19
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 7 guide (both 7a and 7b) →
Mustard Greens planting calendar for California, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
spring planting
Direct sow
Mar 18
Projected first harvest
May 2
fall planting
Direct sow
Sep 15
Projected first harvest
Oct 30
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 8 guide (both 8a and 8b) →
Mustard Greens planting calendar for California, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
spring planting
Direct sow
Mar 6
Projected first harvest
Apr 20
fall planting
Direct sow
Sep 25
Projected first harvest
Nov 9
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 8 guide (both 8a and 8b) →
Mustard Greens planting calendar for California, Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
spring planting
Direct sow
Feb 15
Projected first harvest
Apr 1
fall planting
Direct sow
Oct 6
Projected first harvest
Nov 20
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 9 guide (both 9a and 9b) →
Mustard Greens planting calendar for California, Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
spring planting
Direct sow
Feb 1
Projected first harvest
Mar 18
fall planting
Direct sow
Oct 20
Projected first harvest
Dec 4
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 9 guide (both 9a and 9b) →
Mustard Greens planting calendar for California, Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Direct sow
Jan 16
Projected first harvest
Mar 2
fall planting
Direct sow
Nov 4
Projected first harvest
Dec 19
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 10 guide (both 10a and 10b) →
Mustard Greens planting calendar for California, Zone 10b
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Direct sow
Jan 16
Projected first harvest
Mar 2
fall planting
Direct sow
Nov 4
Projected first harvest
Dec 19
spring planting
fall planting
Mustard Greens is ready to harvest in about 45 days. Full zone 10 guide (both 10a and 10b) →
Mustard Greens planting calendar for California, Zone 11a
Zone 11a doesn't get a seasonal frost — mustard greens plants on a warm/cool-season calendar instead of frost dates.
Best planting window
Cool season (≈ Sep–Feb)
Time to harvest
~45 days
🌴 Your zone never frosts, so planting is timed to the cooler vs. warmer seasons rather than a frost date.
Mustard Greens is ready to harvest in about 45 days.
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 mustard greens in the HomeSown library. Tap any for its full grow guide.
Common problems with mustard greens
What to watch for, with identification and treatment for each
🌱 Grow mustard greens with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →