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Planting calendar for ZIP 83243 (Holbrook, ID)

When to plant vegetables in Holbrook, ID (USDA hardiness zone 6a). Typical last spring frost around May 22, 2026 16 days year to year), first fall frost around Sep 20, 202613 days).

Playing it safe? Spring frost holds off until about Jun 11, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Holbrook, ID planting calendar for dates typical of the whole city.

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Month by month in Holbrook, ID

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Understand your frost dates

Frost dates for ZIP 83243: NOAA 1991-2020 normals (USW00024151 MALAD CITY, ID US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.