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When to plant carrots in Zone 8b
In Zone 8b, direct-sow around March 9 – March 23. For a fall crop, sow around July 22 – August 5.
Your carrots timeline — Zone 8b
| Direct-sow | March 9 – March 23 |
|---|---|
| Sow for fall | July 22 – August 5 |
| Zone 8b last frost | ~03/16 |
| Zone 8b first frost | ~11/15 |
Direct-sow when soil warms to 60°F (around 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).