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When to plant broccoli in Zone 2a
In Zone 2a, start indoors around March 29 – April 5 and transplant around April 19 – May 3. For a fall crop, sow around May 29 – June 12.
Your broccoli timeline — Zone 2a
| Start indoors | March 29 – April 5 |
|---|---|
| Transplant | April 19 – May 3 |
| Sow for fall | May 29 – June 12 |
| Zone 2a last frost | ~05/17 |
| Zone 2a first frost | ~09/07 |
Start indoors; set out 2–4 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 2a'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).