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Sweetpotato planting and harvest dates

Sweetpotato Planting Dates in New Hampshire

Usual sweetpotato planting periods in New Hampshire, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.

Sweetpotato dates in New Hampshire
ActivityWindowSourceLast verified
Plantingplant slips (i.e. plants) in garden 1-2 weeks after last frostsource2026-11-11
Sweetpotato calendar for New Hampshire
ItemJanFebMarAprMayJunJulAugSepOctNovDec
PlantingTiming in table above

What these dates mean in New Hampshire

Frost-date caveat: these are published ranges for New Hampshire. A northern or high-elevation site will run later than a southern or low one, and a cold wet spring can push planting past the window. Timing is relative to last spring frost or soil temperature; frost dates and local conditions vary. Check your last spring frost and soil temperature, and confirm with your county extension office.

Other crops in New Hampshire

Last reviewed: November 2026. Source: UNH Extension - Growing Vegetables: When to Plant Your Vegetable Garden.