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Seward, AK planting calendar

When to plant vegetables in Seward, AK (USDA hardiness zone 5b). Typical last spring frost around May 2, 2026 11 days year to year), first fall frost around Oct 7, 202610 days).

Playing it safe? Spring frost holds off until about May 16, 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 Seward calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Seward, AK’s first frost (~Oct 7, 2026) — fastest first.

Month by month in Seward, AK

January

February

March

April

May

July

August

Understand your frost dates

More Alaska planting calendars

ZIP codes in Seward

99664

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