blissgarden.

When to plant brussels sprouts in Washington

Washington spans USDA zones 6b–9a, so the right time to plant brussels sprouts shifts by weeks across the state. The window to transplant seedlings outdoors runs from about March 1 in Port Townsend to May 30 in Cheney — below are local dates for 132 cities, each computed from its own frost dates.

In Seattlethe brussels sprouts transplant out window (March 8–March 22) has passed for this year.
CityZoneLast frostFirst frostTransplant out
Seattle9aMarch 8November 23March 8 – March 22
Spokane7aApril 26October 15April 26 – May 10
Tacoma8bMarch 8November 14March 8 – March 22
Vancouver8bMarch 29November 9March 29 – April 12
Bellevue9aMarch 8November 23March 8 – March 22
Kent8bMarch 20November 10March 20 – April 3
Everett8bMarch 24November 2March 24 – April 7
Spokane Valley7aApril 26October 15April 26 – May 10

Brussels Sprouts in Washington: FAQ

When can I plant brussels sprouts in Washington?

Across Washington, the time to transplant brussels sprouts spans roughly March 1 in Port Townsend to May 30 in Cheney, each following that city's local frost dates.

Does the brussels sprouts planting date vary across Washington?

Yes. Washington publishes 132 cities with their own frost dates, so the right brussels sprouts planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.

How long does brussels sprouts take to grow in Washington?

Brussels Sprouts takes about 90–110 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.

Planting reminders

Never miss a window in your area

An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.

Brussels Sprouts planting guide →All Washington cities →Washington planting calendar →
When to Plant Brussels Sprouts in Washington — Frost-Based Dates by City — BlissGarden