Skip to main content

Seattle, WA planting calendar

When to plant vegetables in Seattle, WA (USDA hardiness zone 9a). Typical last spring frost around Mar 13, 2026 16 days year to year), first fall frost around Nov 17, 202614 days).

Playing it safe? Spring frost holds off until about Apr 2, 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 Seattle calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Seattle, WA’s first frost (~Nov 17, 2026) — fastest first.

Month by month in Seattle, WA

January

February

March

April

September

December

Understand your frost dates

Frost dates are NOAA 1991–2020 climate normals for a representative location in Seattle, WA (covering 40 ZIPs); your exact dates depend on your address. Schedules are guidance, not guarantees.