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When to plant cauliflower in Zone 2b
In Zone 2b, start indoors around March 30 – April 13 and transplant around May 4 – May 18. For a fall crop, sow around June 11 – June 25.
Your cauliflower timeline — Zone 2b
| Start indoors | March 30 – April 13 |
|---|---|
| Transplant | May 4 – May 18 |
| Sow for fall | June 11 – June 25 |
| Zone 2b last frost | ~05/25 |
| Zone 2b first frost | ~09/15 |
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 2b'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).