(A) All weeds, dry grasses, dead shrubs, dead trees, rubbish or any material growing upon the streets, parking area, sidewalks or upon private property within the city which bears seeds of a wingy or downy nature or which by reason of their size, manner of growth and location constitute a fire hazard to any building, improvements, crops or other property and weeds or grasses which, when dry, will in reasonable probability constitute such a fire hazard are a public nuisance.
(B) Cultivated and useful grasses and pastures are not a public nuisance; however, if the Fire Chief or his or her authorized representative determines it necessary to protect adjacent improved property from fire exposure, an adequate fire-break may be required.
(`78 Code, § 8.24.030.)