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When to plant broccoli in Zone 6b
Your broccoli timeline — Zone 6b
| Start indoors | March 5 – March 12 |
|---|---|
| Transplant | March 26 – April 9 |
| Sow for fall | July 11 – July 25 |
| Zone 6b last frost | ~04/23 |
| Zone 6b first frost | ~10/20 |
Dates computed from Zone 6b'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).