Connecticut · zones 6a–7a
When to plant lettuce in Connecticut.
Sow between Mar 15 to Apr 29 in a typical year, keyed to Connecticut's median last frost around Apr 22. A second, fall sowing fits Jul 29 to Sep 27. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Lettuce dates for a typical Connecticut season.
Direct sow
Mar 15 to Apr 29
Keyed to the ~Apr 22 last frost. Sow 0.25" deep, 6" apart.
Fall round
Jul 29 to Sep 27
Counted back from the ~Oct 12 first frost.
Harvest
~45 days later
~0.4 lb per plant over ~1 weeks.
Connecticut spans more than one climate: Zone 6 is the most common zone, but the state runs 6a to 7a. That's why the planner works from your ZIP code's frost dates, not your zone — mountain and coastal gardens in the same state can be three weeks apart.