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When to plant carrots in Zone 9b
In Zone 9b, direct-sow around January 26 – February 9. For a fall crop, sow around August 14 – August 28.
Your carrots timeline — Zone 9b
| Direct-sow | January 26 – February 9 |
|---|---|
| Sow for fall | August 14 – August 28 |
| Zone 9b last frost | ~02/02 |
| Zone 9b first frost | ~12/08 |
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 9b'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).