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Lannon, WI planting calendar

When to plant vegetables in Lannon, WI (USDA hardiness zone 5b). Typical last spring frost around Apr 30, 2026 12 days year to year), first fall frost around Oct 16, 202611 days).

Playing it safe? Spring frost holds off until about May 15, 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 Lannon calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Lannon, WI’s first frost (~Oct 16, 2026) — fastest first.

Month by month in Lannon, WI

January

February

March

April

May

August

Understand your frost dates

More Wisconsin planting calendars

ZIP codes in Lannon

53046

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