Invasive Plant Rules in Bothell, WA (2026)
1 verified invasive plant rules for Bothell, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Prohibited Species
The City of Bothell, Washington names its noxious vegetation in the code: gorse, Japanese knotweed, purple loosestrife, giant hogweed, tansy ragwort, knapweed and Dalmatian toadflax, plus any plant determined noxious under RCW Title 17. These plants, and poisonous ones like poison hemlock, are health hazards the owner and occupant must abate.
Bothell Noxious and Poisonous Plant Nuisance Rules
Some RestrictionsBothell Municipal Code § 8.24.020
E. “Health hazard” means any of the following: ... 2. Vegetation which is poisonous, including but not limited to poison ivy, poison oak, poison hemlock, poison sumac, and nightshade; 3. Vegetation which is noxious, including gorse, Japanese knotweed, purple loosestrife, giant hogweed, tansy ragwort, knapweed, Dalmatian toadflax, and any other plant which may be determined to be noxious, in acc...
Looking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Bothell city rules.
Invasive Plant Rules in King County →