State vegetable.

RCW 1.20.140
in effect
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The Walla Walla sweet onion is designated as the official vegetable of the state of Washington. The Walla Walla sweet onion is designated as the official vegetable of the state of Washington.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=1.20&full=trueFetched: 6/28/2026

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