No. Clackamas County has no ordinance addressing tall grass or weeds. The county states that properties outside city limits are not required to cut their grass or remove noxious vegetation such as blackberry vines or English ivy. Weed and grass-height rules exist only inside cities.
The county is explicit: there is no county grass-height or weed ordinance for unincorporated land. Owners are not obligated to mow lawns, cut fields, or remove invasive vegetation like Himalayan blackberry or English ivy. The county's Noxious Weed program educates and coordinates on state-listed noxious weeds (per the Oregon Department of Agriculture classification) but does not impose a mow-your-lawn duty on residents. Residents bothered by a neighbor's overgrowth outside a city have no county remedy. In wildfire-hazard zones, separate defensible-space clearance obligations may apply. Cities such as Oregon City, Milwaukie, and Happy Valley enforce their own vegetation-height standards.
No county fine for tall grass or weeds outside city limits. Enforcement exists only for state-designated noxious-weed control programs and city-level ordinances.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Backyard composting of yard debris and food scraps is allowed and encouraged in Clackamas County; no permit is needed for a home compost pile. Commercial-sca...
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Clackamas County has no ordinance banning or specifically regulating artificial turf in residential yards. Standard land-use rules on lot coverage, drainage,...
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Clackamas County does not mandate native-plant landscaping for private yards, but strongly encourages it and requires native-vegetation retention in protecte...
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Rooftop rainwater harvesting is legal in Oregon and does not need a water right. Clackamas County adds no ban. Collecting rain from an artificial impervious ...
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Clackamas County government sets no countywide outdoor-watering ban. Watering rules come from your local water provider (such as Clackamas River Water or Sun...
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Oregon law (ORS 569) declares noxious weeds a public nuisance to be controlled on all lands. Clackamas County runs the WeedWise program (since 2009) through ...
See how Clackamas County's weeds & overgrown grass rules stack up against other locations.
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