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Planting calendar for ZIP 50836 (Blockton, IA)

When to plant vegetables in Blockton, IA (USDA hardiness zone 5b). Typical last spring frost around Apr 24, 2026 10 days year to year), first fall frost around Oct 14, 202611 days).

Playing it safe? Spring frost holds off until about May 6, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Blockton, IA planting calendar for dates typical of the whole city.

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Month by month in Blockton, IA

January

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March

April

May

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Understand your frost dates

Frost dates for ZIP 50836: NOAA 1991-2020 normals (USC00233369 GRANT CITY, MO US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.