Landscaping Rules in Benton County, WA (2026)
3 county-level rules, plus city-specific rules for 1 city in Benton County, Washington.
Verified from official government sources
Weed Ordinances
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.
Benton County Noxious Weed Rules
Heavy RestrictionsRCW 17.10.140(1)
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 ...
Water Restrictions
Water is Benton County's defining constraint. Washington follows prior appropriation, and the Yakima River Basin is fully adjudicated. Irrigation districts deliver seasonal water by seniority, and junior rights face curtailment in drought years.
Benton County Water & Irrigation Rules
Some RestrictionsRCW 90.03.010
Subject to existing rights all waters within the state belong to the public, and any right thereto, or to the use thereof, shall be hereafter acquired only by appropriation for a beneficial use and in the manner provided and not otherwise; and, as between appropriations, the first in time shall be the first in right.
Native Plants
Benton County's high desert makes native and drought-tolerant landscaping a natural fit, and no local rule forces a grass lawn on an existing lot. You may plant shrub-steppe natives freely, but listed noxious weeds must still be controlled.
Benton County Native Plant & Xeriscape Rules
Few RestrictionsRCW 17.10.140(1)
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 ...
Landscaping Rules by City in Benton County
1 cities in Benton County have their own landscaping rules rules. Each link goes to that city's dedicated page with code citations.
All Benton County ordinances
See every category we cover for Benton County: parking, noise, fences, fires, animals, pools, and more.
Benton County Ordinance Hub →