New Mexico · zones 6a–8a
When to plant lettuce in New Mexico.
Sow between Mar 13 to Apr 27 in a typical year, keyed to New Mexico's median last frost around Apr 20. 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 New Mexico season.
Direct sow
Mar 13 to Apr 27
Keyed to the ~Apr 20 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.
New Mexico spans more than one climate: Zone 7 is the most common zone, but the state runs 6a 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.