Do I Have to Remove My Mulch? California Zone 0 Landscaping Rules

In most of California, today, yes — no statewide rule prevents it. In unincorporated San Diego County, no: that first five feet must be hardscape or non-combustible material. Under the state draft, limited plants could stay in the one-to-five-foot band if they are low-growing, low-combustibility and separated from walls, eaves, windows, vents and from each other, with nothing at all inside the foundation band. The principle behind all three is the same: no continuous path of fuel leading to the house.

Required in unincorporated San Diego County, where mulch is prohibited in the first five feet outright. Proposed everywhere else — the state draft would exclude bark mulch, wood chips and pine straw from the whole five feet. Recommended regardless: bark mulch against a wall is the classic ember trap, and decomposed granite, gravel, river rock or pavers do the same landscaping job without the fuel. This is the one item on this site worth doing before anyone tells you to.

Nothing currently requires you to move them, outside jurisdictions with their own ordinance. Under the state draft, individual potted plants could remain if they are separated from walls, eaves, windows and from each other rather than clustered. As a matter of fire behavior rather than rules: a ceramic, metal or concrete pot is inert, a plastic or wooden one is fuel, and a row of pots pushed against the siding behaves like a hedge.

No rule in force requires removing a lawn. Green, irrigated, mown grass is considerably lower combustibility than mulch or shrubs, and the state draft would likely permit it in the one-to-five-foot band. Dead or dry grass is a different material entirely and is already covered by existing defensible-space law. The foundation band, if the draft takes effect, would need to be clear of all vegetation including grass.

Statewide, there is no date to work to. The August draft gave existing structures three years from an effective date, and that effective date does not exist — the Board pulled the filing back for review on September 8, 2026 and has not refiled. Locally is different: in unincorporated San Diego County the requirement is already overdue, and the City of San Diego reaches vegetation work on February 28, 2028. Find out which jurisdiction you are in before you work to anyone's calendar.

Most of it is homeowner work. Clearing mulch, pulling dead vegetation and raking leaf litter out of the first five feet needs no permit, no licence and no contractor. Tree work near a structure is the exception — use a licensed arborist, because the failure modes there are serious. If you want the result documented for a jurisdiction that inspects, an inspection can produce a written record of what was found and what was changed.