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When to plant lettuce in Zone 5b
In Zone 5b, direct-sow or transplant around April 3 – April 17. For a fall crop, sow around June 24 – July 8.
Your lettuce timeline — Zone 5b
| Start indoors | March 6 – March 13 |
|---|---|
| Transplant | April 3 – April 17 |
| Sow for fall | June 24 – July 8 |
| Zone 5b last frost | ~05/04 |
| Zone 5b first frost | ~10/08 |
Start indoors or direct-sow; set out / sow 3–4 weeks before the last frost. [src]Cited: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”
Dates computed from Zone 5b'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
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Last verified 2026-07-16. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”; UGA Extension (days to maturity).