La Mesa, CA Landscaping Rules: Weed Ordinances (2026)

The duty attaches once a lot, parking area, sidewalk or street frontage is found to hold weeds, dry grasses, dead shrubs or trees that are declared a nuisance under section 10.40.020, typically because they bear wingy or downy seeds or, by size and location, create a fire hazard. The fire chief or an authorized designee serves a written notice to abate nuisance by personal delivery, mail or conspicuous posting, and the owner then has thirty days from that notice, or ten days after a final appeal ruling, to remove the weeds or grass themselves.

Under section 10.40.070, every responsible owner, agent or occupant in possession is jointly and severally liable for both the removal and its cost if the city ends up doing the work: the bill covers the private contractor's charge, city administrative overhead and attorneys' fees, and forced abatement by a contractor can proceed only after a city representative has inspected the property and ordered the work in writing. The section also folds in outside permitting: before clearing the nuisance, the owner must obtain any approvals required by other agencies, including the California Department of Fish and Game and the U.S.

Fish and Wildlife Service, which matters where habitat, riparian growth or protected species are present. Unpaid abatement costs become special assessments that the city council can turn into liens on the parcel, collected on the county tax roll the same way as ordinary property taxes.