Plant Lettuce in Zone 4b
Seed-starting, transplant & harvest dates for USDA Zone 4b
Start indoors
Apr 7
Transplant
Apr 21
Direct sow
Apr 7
Harvest (~50d)
Jun 10
In Zone 4b, the average last spring frost is around May. 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
May 5
First fall frost
Sep 28
Growing season
146 days
Full Lettuce grow guide → · All crops for Zone 4b →
Frequently asked questions
When should I start lettuce in Zone 4b?
Start lettuce seeds indoors around Apr 7 (Zone 4b).
Can I direct sow lettuce in Zone 4b?
Yes, direct sow around Apr 7.