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When to plant sweet potatoes in Zone 5a

In Zone 5a, direct-sow around May 16 – May 30.

Your sweet potatoes timeline — Zone 5a

Direct-sowMay 16 – May 30
Zone 5a last frost~05/12
Zone 5a first frost~10/01
Plant slips 1–2 weeks after the last frost. [src]Cited: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”

Dates computed from Zone 5a'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: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”; University of Georgia Extension — Vegetable Planting Chart (Circular C963) (days to maturity).

Sweet Potatoes in other zones

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