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When to plant cabbage in Zone 9b
In Zone 9b, start indoors around November 24 – December 8 and transplant around December 29 – January 12. For a fall crop, sow around July 20 – August 3.
Your cabbage timeline — Zone 9b
| Start indoors | November 24 – December 8 |
|---|---|
| Transplant | December 29 – January 12 |
| Sow for fall | July 20 – August 3 |
| Zone 9b last frost | ~02/02 |
| Zone 9b first frost | ~12/08 |
Start indoors; set out 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 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 2026-07-16. 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).