Home › Crops › Lettuce › Zone 3b
When to plant lettuce in Zone 3b
Your lettuce timeline — Zone 3b
| Start indoors | March 22 – March 29 |
|---|---|
| Transplant | April 19 – May 3 |
| Sow for fall | June 5 – June 19 |
| Zone 3b last frost | ~05/20 |
| Zone 3b first frost | ~09/19 |
Dates computed from Zone 3b's median NOAA frost normals and the cited rule. Your town may differ by a week or two — check your exact ZIP.
What you'll need
Affiliate links — as an Amazon Associate we may earn from qualifying purchases, at no extra cost to you.
📦 Ordering seeds or soil for this window? Amazon Prime's free 30-day trial includes fast free delivery, so supplies ordered now arrive while the window is still open — and returns are free if something is wrong for your zone. Start the free 30-day trial →
Affiliate link — we may earn a commission on qualifying sign-ups, at no extra cost to you. Current terms are on Amazon's page.
Last verified 2026-08-28. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”; University of Georgia Extension — Vegetable Planting Chart (Circular C963) (days to maturity).