Eugene, OR Landscaping Rules: Weed Ordinances (2026)

815 (current through Ordinance 20739, passed June 8, 2026) defines "obnoxious vegetation" to include weeds over 10 inches high, grass over 10 inches high (except agricultural crops that are not a fire hazard or vision obstruction), poison oak, poison ivy, and blackberry vines or other vegetation that is a fire hazard near combustibles, extends into a public way or a path children use, crosses a property line, or shelters trespassers. Between June 15 and September 30 each year, an owner or person in charge of undeveloped property may not let obnoxious vegetation exist on the property or in the abutting public way; the condition is automatically a public nuisance during that window.

820 lets the director of public works waive strict compliance where it would be impractical for a given type of vegetation, height, or portion of a parcel. 845: the city recorder publishes the notice requirement three times between May 1 and June 15 and mails it to owners of record on the Lane County tax rolls, after which owners have 10 days from the third publication (or from any later violation) to abate; the city can abate directly if they do not, adding a $50 or 10% abatement-cost penalty, whichever is greater, that is waived if the bill is paid on time.