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When to plant celery in Zone 10b
In Zone 10b, start indoors around November 4 – November 18 and transplant around January 20 – February 3.
Your celery timeline — Zone 10b
| Start indoors | November 4 – November 18 |
|---|---|
| Transplant | January 20 – February 3 |
| Zone 10b last frost | ~01/20 |
| Zone 10b first frost | ~01/25 |
Start indoors; set out 1 week after the last frost. [src]Cited: Johnny's Selected Seeds — Seed-Starting Date Calculator chart
Dates computed from Zone 10b'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 2026-07-17. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: Johnny's Selected Seeds — Seed-Starting Date Calculator chart.