When to plant lettuce in zone 4a
A planting schedule for lettuce in USDA hardiness zone 4a, where the typical last spring frost is around May 12, 2026 and the first fall frost around Oct 3, 2026. Dates are computed from NOAA frost normals for a representative location (Stanton, ND) — your exact dates depend on your address.
Lettuce planting schedule for zone 4a
- Start seeds indoorsMar 24, 2026 – Sep 5, 2026
- Start hardening offApr 28, 2026 – Sep 28, 2026
- Transplant outdoorsMay 5, 2026 – Oct 3, 2026
Playing it safe with tender crops? Spring frost holds off until about May 26, 2026 in roughly 9 years out of 10.
Want exact lettucedates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:
Free on one garden — no credit card. See the full lettuce growing guide or the whole zone 4a calendar.
Lettuce in other zones
More crops for zone 4a
Frost dates are NOAA 1991–2020 climate normals for a representative location (Stanton, ND) in zone 4a; your exact dates depend on your address. Schedules are guidance, not guarantees.