All weeds growing upon the streets or sidewalks or upon private property within the city which bear seeds of a wingy or downy nature, or attain, such a large growth as to become a fire menace when dry, or which are otherwise noxious or dangerous, and all rubbish, refuse and dirt upon streets, parkways, sidewalks or private property within the city, may be declared to be a public nuisance by the City Council and may be abated as herein provided.
(1994 Code, § 8.32.010)