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When to plant lettuce in Zone 9b
Your lettuce timeline — Zone 9b
| Start indoors | December 5 – December 12 |
|---|---|
| Transplant | January 2 – January 16 |
| Sow for fall | August 24 – September 7 |
| Zone 9b last frost | ~02/02 |
| Zone 9b first frost | ~12/08 |
Dates computed from Zone 9b'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 2026-08-28. 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).