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Landscaping Rules in Kennewick, WA (2026)

2 verified landscaping rules for Kennewick, Washington, sourced directly from the municipal code and official government pages.

Verified from official government sources

Tree Trimming

Kennewick requires seven feet of clear height over any sidewalk or bicycle path in the public right-of-way under KMC 13.12.050: trees, hedges, shrubbery, and other natural growth may not obstruct a walkway or bike path unless the lowest branch or growth sits at seven feet or higher above the surface. The rule sits in the traffic obstructions chapter, not the landscaping code, so code enforcement can act citywide.

Kennewick's 7-Foot Sidewalk Clearance for Trees

Some Restrictions

Kennewick Municipal Code § 13.12.050 (Ord. 2756, Sec. 1, 1983)

Notwithstanding any other provision of this code, no person may park vehicles or install, set out, or maintain any sign, fence, hedge, shrubbery, natural growth, or other obstruction which impedes the use of a walkway or bicycle path by a pedestrian or bicyclist within the public right-of-way. No obstruction of a walkway or bicycle pathway may exist within the right-of-way unless seven or more ...

Weed Ordinances

Kennewick treats any dead, dried-out, or unirrigated grass, weeds, or vegetation over 12 inches as a legal 'Weed Hazard' and public nuisance, punishable by a $250 civil infraction under KMC 9.48.055.

Kennewick Caps Weeds and Grass at 12 Inches

Some Restrictions

Kennewick Municipal Code § 9.48.055 (Ord. 5659 Sec. 7, 2016); definition at § 9.48.010(4) (Ord. 25-6091 Sec. 1, 2025)

Weed Hazard means grasses, weeds, or other vegetation which have grown and died or which are not irrigated and which exceed 12 inches in length. Public parks, public facility and open space zones, areas of pristine vegetation and natural habitats for indigenous wildlife and agriculturally used property are not weed hazards. ... It is unlawful for any person ... to permit a Weed Hazard to exist ...

Looking for Benton County county-wide rules?

County ordinances apply to unincorporated areas and may supplement Kennewick city rules.

Landscaping Rules in Benton County