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When to plant carrots in Zone 9a
In Zone 9a, direct-sow around February 23 – March 9. For a fall crop, sow around August 1 – August 15.
Your carrots timeline — Zone 9a
| Direct-sow | February 23 – March 9 |
|---|---|
| Sow for fall | August 1 – August 15 |
| Zone 9a last frost | ~03/02 |
| Zone 9a first frost | ~11/25 |
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 9a'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).