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When to plant watermelon in Zone 9b
In Zone 9b, start indoors around January 19 – January 26 and transplant around February 9 – February 23.
Your watermelon timeline — Zone 9b
| Start indoors | January 19 – January 26 |
|---|---|
| Transplant | February 9 – February 23 |
| Zone 9b last frost | ~02/02 |
| Zone 9b first frost | ~12/08 |
Start indoors; set out 2 weeks after the last frost. [src]Cited: Johnny's Selected Seeds — Seed-Starting Date Calculator chart
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 2026-07-17. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: Johnny's Selected Seeds — Seed-Starting Date Calculator chart; University of Georgia Extension — Vegetable Planting Chart (Circular C963) (days to maturity).