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Island Park, ID planting calendar

When to plant vegetables in Island Park, ID (USDA hardiness zone 4a). Typical last spring frost around Jun 15, 2026 15 days year to year), first fall frost around Sep 10, 202613 days).

Playing it safe? Spring frost holds off until about Jul 4, 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 Island Park calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Island Park, ID’s first frost (~Sep 10, 2026) — fastest first.

Month by month in Island Park, ID

March

April

May

June

July

Understand your frost dates

More Idaho planting calendars

ZIP codes in Island Park

83429

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