When to Plant Lettuce in Zone 10
In USDA zone 10a, start seeds indoors around December 12, transplant or plant outdoors January 16 to March 12, and expect your first harvest around March 12. Zone 10 also has a fall planting window opening around October 21. (10a shown here — see 10a and 10b dates separately below.)
Lettuce planting calendar for USDA Zone 10a
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Start seeds indoors
Dec 12
Transplant outdoors
Jan 16
Projected first harvest
Mar 12
fall planting
Direct sow
Oct 21
Projected first harvest
Dec 15
spring planting
fall planting
Most lettuce mature in about 45 to 85 days depending on the variety, needing roughly 334 frost-free days in zone 10a.
Lettuce planting calendar for USDA Zone 10b
Average last spring frost
January 30
Average first fall frost
December 30
spring planting
Start seeds indoors
Dec 12
Transplant outdoors
Jan 16
Projected first harvest
Mar 12
fall planting
Direct sow
Oct 21
Projected first harvest
Dec 15
spring planting
fall planting
Most lettuce mature in about 45 to 85 days depending on the variety, needing roughly 334 frost-free days in zone 10b.
Not sure whether you're in 10a or 10b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
12 varieties of lettuce in the HomeSown library. Tap any for its full grow guide.
Common problems with lettuce
What to watch for, with identification and treatment for each
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