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Planting calendar for ZIP 66429 (Grantville, KS)

When to plant vegetables in Grantville, KS (USDA hardiness zone 6b). Typical last spring frost around Apr 12, 2026 11 days year to year), first fall frost around Oct 23, 202611 days).

Playing it safe? Spring frost holds off until about Apr 26, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Grantville, KS planting calendar for dates typical of the whole city.

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Month by month in Grantville, KS

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Understand your frost dates

Frost dates for ZIP 66429: NOAA 1991-2020 normals (USW00013996 TOPEKA MUNI AP, KS US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.