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When to plant watermelon in Zone 6b
In Zone 6b, start indoors around April 9 – April 16 and transplant around April 30 – May 14.
Your watermelon timeline — Zone 6b
| Start indoors | April 9 – April 16 |
|---|---|
| Transplant | April 30 – May 14 |
| Zone 6b last frost | ~04/23 |
| Zone 6b first frost | ~10/20 |
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 6b'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).