Del Norte County, CA Property Maintenance: Weeds & Overgrown Grass (2026)

Del Norte County addresses problem vegetation through two distinct tracks. First, the general nuisance code (County Code Chapter 7.08) declares any condition in violation of the weed and rubbish abatement laws at Government Code sections 39500 et seq. and 39560 et seq. to be a nuisance, giving the county authority over fire-hazard weeds, dry vegetation, and rubbish without a single published grass-height number. Second, the county has a specific weed ordinance: per Del Norte County Code Section 7.40.50, the tansy ragwort ordinance prohibits persons from allowing tansy ragwort to flower on their property within 150 feet of property lines bordering parcels that are either free of tansy or are being controlled for tansy. The Agricultural Commissioner's Office runs the county's weed management and eradication program, prioritizing A-rated weeds defined by the California Department of Food and Agriculture and controlling invasive and noxious weeds along county roadsides and wildlands; the county also recommends property owners remove invasive weeds and dispose of them at the transfer station rather than composting. For ordinary residential lawn or grass maintenance, the county relies on the nuisance and blight framework rather than a numeric height cap. Property owners should control noxious weeds (especially tansy ragwort near boundaries) and avoid fire-hazard vegetation accumulations to stay compliant.