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When to plant cauliflower in Zone 8b
In Zone 8b, start indoors around January 19 – February 2 and transplant around February 23 – March 9. For a fall crop, sow around August 11 – August 25.
Your cauliflower timeline — Zone 8b
| Start indoors | January 19 – February 2 |
|---|---|
| Transplant | February 23 – March 9 |
| Sow for fall | August 11 – August 25 |
| Zone 8b last frost | ~03/16 |
| Zone 8b first frost | ~11/15 |
Start indoors; set out 2 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 8b'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).