Tennessee · zones 7a–8a
When to plant lettuce in Tennessee.
Sow between Mar 1 to Apr 15 in a typical year, keyed to Tennessee's median last frost around Apr 8. A second, fall sowing fits Aug 11 to Oct 10. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Lettuce dates for a typical Tennessee season.
Direct sow
Mar 1 to Apr 15
Keyed to the ~Apr 8 last frost. Sow 0.25" deep, 6" apart.
Fall round
Aug 11 to Oct 10
Counted back from the ~Oct 25 first frost.
Harvest
~45 days later
~0.4 lb per plant over ~1 weeks.
Tennessee spans more than one climate: Zone 7 is the most common zone, but the state runs 7a to 8a. 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.