Skip to main content

Dover, NH planting calendar

When to plant vegetables in Dover, NH (USDA hardiness zone 6a). Typical last spring frost around May 3, 2026 9 days year to year), first fall frost around Oct 10, 202611 days).

Playing it safe? Spring frost holds off until about May 14, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

Or get a printable Dover calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Dover, NH’s first frost (~Oct 10, 2026) — fastest first.

Month by month in Dover, NH

January

February

March

April

May

July

August

Understand your frost dates

More New Hampshire planting calendars

ZIP codes in Dover

03820

Frost dates are NOAA 1991–2020 climate normals for a representative location in Dover, NH (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.