Plant Lettuce in Zone 9b
Seed-starting, transplant & harvest dates for USDA Zone 9b
Start indoors
Jan 18
Transplant
Feb 1
Direct sow
Jan 18
Harvest (~50d)
Mar 23
In Zone 9b, the average last spring frost is around February. Lettuce is a hardy crop, so give it a head start indoors about 4 weeks before that, then move it out after frost danger passes.
Last spring frost
Feb 15
First fall frost
Dec 10
Growing season
298 days
Full Lettuce grow guide → · All crops for Zone 9b →
Frequently asked questions
When should I start lettuce in Zone 9b?
Start lettuce seeds indoors around Jan 18 (Zone 9b).
Can I direct sow lettuce in Zone 9b?
Yes, direct sow around Jan 18.