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Crop dates by placeSweetpotato Planting Dates by State and Region
Published sweetpotato planting windows for 1 places, with the source and the caveats you need before you use them.
| Place | Planting | Harvest |
|---|---|---|
| New Hampshire | Planting: plant slips (i.e. plants) in garden 1-2 weeks after last frost |
Calendar view
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| New Hampshire planting | Timing in table above | |||||||||||
Frost-date caveat: ranges blur real differences inside a state or region. Use them to plan, then fit them to your last frost date, soil temperature and field conditions.
Last reviewed: November 2026. Source: UNH Extension - Growing Vegetables: When to Plant Your Vegetable Garden.