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When to plant turnips in Zone 4b
Your turnips timeline — Zone 4b
| Direct-sow | April 12 – April 26 |
|---|---|
| Sow for fall | July 11 – July 25 |
| Zone 4b last frost | ~05/10 |
| Zone 4b first frost | ~09/30 |
Dates computed from Zone 4b'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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Calendar computed 2026-09-28. 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).