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Porthill, ID planting calendar

When to plant vegetables in Porthill, ID (USDA hardiness zone 6a). Typical last spring frost around May 4, 2026 15 days year to year), first fall frost around Sep 30, 202613 days).

Playing it safe? Spring frost holds off until about May 23, 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:

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Still time to plant

As of today, these crops can still reach harvest before Porthill, ID’s first frost (~Sep 30, 2026) — fastest first.

Month by month in Porthill, ID

January

February

March

April

May

June

July

August

Understand your frost dates

More Idaho planting calendars

ZIP codes in Porthill

83853

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