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Can You Grow Brussels Sprouts in Washington?

US · USDA Zone 8b · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b

Grows well here

Brussels sprouts grow here with a long enough frost-free season — frost actually improves them.

Plant zones

3a–9a

Washington last frost

late January

Washington first frost

mid-December

Days to harvest

90–180 days

When to plant Brussels Sproutses in Washington

Start indoors

Jan 1

Transplant

Jan 30

Harvest

Apr 30 – Jul 29

Dates are approximate, based on Washington's average frost dates. Your exact yard may vary by microclimate.

About Brussels Sprouts

Brussels sprouts have a long season but reward patience — sprouts actually improve after a light frost.

Start indoors 8 weeks before last frost. Plant in the sunniest spot. Needs a long season — start early. Frost improves flavour. Stake in exposed positions against autumn winds.

Full brussels sprouts growing guide →

Gardening in Washington

Washington has dramatically different climates. The wet maritime west (Zone 8a-8b) is mild and productive year-round. Eastern Washington is semi-arid and colder (Zone 5-6) with hot dry summers.

See what grows well in Washington →

Frequently asked questions

Can you grow Brussels Sprouts in Washington?

Brussels sprouts grow here with a long enough frost-free season — frost actually improves them.

What zone is Washington?

Washington spans USDA Zone 8b (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b).

When do you plant Brussels Sproutses in Washington?

Plant Brussels Sproutses around late January (start indoors Jan 1), harvest Apr 30 – Jul 29.