Landscaping Rules in Tigard, OR (2026)
5 verified landscaping rules for Tigard, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Grass Height Limits
Tigard caps grass at 10 inches under TMC Chapter 6.02. 'Noxious vegetation' in TMC 6.01.020.M.8 includes grass over 10 inches high. Responsible parties must cut grass, weeds, brush, and other noxious vegetation as often as needed to prevent maturity or seeding.
Tigard Grass Height Limit (TMC 6.02)
Some RestrictionsTree Trimming
Street tree maintenance is the responsibility of the fronting property owner. Branches must be maintained 8 feet above sidewalks and 13–18 feet above the street depending on street type. Trees planted through the Urban Forestry Fund have special maintenance requirements.
Tigard Tree Trimming Rules
Some RestrictionsTree Removal & Heritage Trees
Tigard regulates tree removal under TMC Title 8 (Urban Forestry), Chapters 8.04-8.16. Permits are required for street trees, heritage trees, Urban Forestry Fund trees, and native trees within sensitive lands. Unlawful removal carries a minimum $250-per-tree penalty under TMC 1.16.640.
Tigard Tree Removal Permits (TMC Title 8)
Heavy RestrictionsWeed Ordinances
Tigard's weed rules are part of the nuisance code in TMC Chapter 6.02, with 'noxious vegetation' defined in TMC 6.01.020.M.8. The definition includes English ivy, giant hogweed, purple loosestrife, Japanese knotweed, Himalayan blackberry, and weeds over 10 inches going to seed.
Tigard Noxious Weeds & Invasives (TMC 6.02)
Some RestrictionsWater Restrictions
Tigard's water rules are set in TMC Chapter 12.10. The city uses a four-stage curtailment plan with Lake Oswego: Stage 1 voluntary; Stages 2-4 mandatory. First violation gets a warning letter; later violations become civil infractions with escalating fines.
Tigard Water Curtailment (TMC 12.10)
Some RestrictionsLooking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Tigard city rules.
Landscaping Rules in Washington County →