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When to plant watermelon in Zone 6a

In Zone 6a, start indoors around April 16 – April 23 and transplant around May 7 – May 21.

Your watermelon timeline — Zone 6a

Start indoorsApril 16 – April 23
TransplantMay 7 – May 21
Zone 6a last frost~04/30
Zone 6a first frost~10/15
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 6a'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 2026-08-28. 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).

Watermelon in other zones

← Everything to plant in Zone 6a