Benton County, WA Landscaping Rules: Weed Ordinances (2026)
Key Facts
- State law
- RCW 17.10 (mandatory control)
- Authority
- Benton County Weed Board
- Region
- Washington Region 5
- Common targets
- Puncturevine, knapweed, whitetop
- Non-compliance
- Abatement plus property lien
Summary
Benton County makes noxious-weed control mandatory. Under state law and the Benton County Noxious Weed Control Board, owners must eradicate Class A weeds and control listed Class B and C species. This is a real, enforceable duty backed by abatement and liens.
Every owner must perform or cause to be performed those acts as may be necessary to: (a) Eradicate all class A noxious weeds; (b) Control and prevent the spread of all class B noxious weeds designated for control in that region within and from the owner's property; and (c) Control and prevent the spread of all class B and class C noxious weeds listed on the county weed list as locally mandated control priorities within and from the owner's property.
Full Breakdown
Overgrown grass is a nuisance, but noxious weeds are a legal obligation. Benton County sits in Region 5 of Washington's noxious weed program, and the Benton County Noxious Weed Control Board enforces RCW 17.10: owners must eradicate all Class A weeds and control designated Class B and C species before they bloom, seed, or spread. Classic Columbia Basin targets include puncturevine, Russian and diffuse knapweed, whitetop, and rush skeletonweed. If an owner fails to act, the Board can control the weeds at the owner's expense and lien the property.
Violations & Fines
The Weed Board issues notice to control listed weeds. If ignored, it abates at the owner's expense, including labor, materials, and fees, and records the charge as a lien after a hearing.
Frequently Asked Questions
Am I required to remove weeds on my Benton County property?
What happens if I don't control noxious weeds?
Sources & Official References
Other rules in Benton County
How Benton County compares: Cities with the Strictest Weed and Property Maintenance Rules·Compare Benton County to another location·View the Washington landscaping rules overview
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