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When to plant celery in Zone 10a
In Zone 10a, start indoors around October 30 – November 13 and transplant around January 15 – January 29.
Your celery timeline — Zone 10a
| Start indoors | October 30 – November 13 |
|---|---|
| Transplant | January 15 – January 29 |
| Zone 10a last frost | ~01/15 |
| Zone 10a first frost | ~12/02 |
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 10a'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.