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Planting calendar for ZIP 03047 (Greenfield, NH)

When to plant vegetables in Greenfield, NH (USDA hardiness zone 6a). Typical last spring frost around May 10, 2026 12 days year to year), first fall frost around Oct 6, 202610 days).

Playing it safe? Spring frost holds off until about May 25, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Greenfield, NH planting calendar for dates typical of the whole city.

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Month by month in Greenfield, NH

February

March

April

May

June

July

August

Understand your frost dates

Frost dates for ZIP 03047: NOAA 1991-2020 normals (USC00273658 GREENVILLE 1 NNE, NH US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.