Washington County and Metro encourage native Willamette Valley plantings for stormwater and habitat. Tualatin SWCD offers the native plant sale. Clean Water Services requires native plantings in vegetated corridors along streams.
Western Oregon is water-rich, so xeriscape mandates are uncommon in Washington County, but native plant use is actively supported. Tualatin Soil and Water Conservation District offers a Native Plant Sale, technical assistance, and Backyard Habitat Certification in partnership with Portland Audubon. Clean Water Services Design and Construction Standards require native plantings in Vegetated Corridors along Tualatin River tributaries (50 to 200 feet depending on slope). Invasive species listed by Oregon Department of Agriculture (English ivy, Himalayan blackberry, knotweed, garlic mustard) are targeted for removal. HOAs cannot prohibit drought-tolerant or native landscaping that substitutes for turf under state encouragement, though aesthetic rules may apply. No mandatory turf replacement or watering allotment exists at the county level.
No county penalty for traditional landscaping. Vegetated Corridor violations (CWS): restoration plan required, fines up to $500 per day. Invasive species on adjacent public land may prompt abatement.
Tigard, OR
Tigard treats leaf blowers as air-, electrical-, or gas-driven domestic tools under TMC 6.02.450 (Exceptions to Noise Limits). They may be operated between 7...
Tigard, OR
Loudspeakers, amplifying devices, public-address systems, radios, and music systems are regulated as noise sources under Tigard Municipal Code Chapter 6.02, ...
Tigard, OR
Tigard contracts dog licensing and barking-dog enforcement to Washington County Animal Services. The operative standard is Washington County Code 6.04.260 (C...
Tigard, OR
Construction, demolition, and industrial activities are exempt from Tigard's general sound limits only between 7 a.m. and 8 p.m., seven days a week, under TM...
Tigard, OR
Tigard's noise ordinance is codified at Tigard Municipal Code Chapter 6.02, Article V (Noise Nuisances) under the Nuisance Code. The defined nighttime quiet ...
Tigard, OR
Tigard Municipal Code Chapter 7.60 defines an abandoned vehicle and makes it unlawful to abandon any vehicle on a public right-of-way or other public propert...
See how Tigard's native plants rules stack up against other locations.
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