Skip to main content

Black Diamond, WA planting calendar

When to plant vegetables in Black Diamond, WA (USDA hardiness zone 8b). Typical last spring frost around Apr 20, 2026 16 days year to year), first fall frost around Oct 25, 202615 days).

Playing it safe? Spring frost holds off until about May 10, 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 Black Diamond calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Black Diamond, WA’s first frost (~Oct 25, 2026) — fastest first.

Month by month in Black Diamond, WA

January

February

March

April

May

August

Understand your frost dates

More Washington planting calendars

ZIP codes in Black Diamond

98010

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