Zone Zero Landscaping & Vegetation Requirements

Phase 1 of California's Zone Zero regulations requires removing combustible vegetation and ground cover within 5 feet of any structure. This is the first and most immediate compliance action for California homeowners.

Remove all combustible ground cover

Bark mulch, wood chips, pine needles, dead leaves, and all combustible ground cover must be removed from within 5 feet of any structure. Inorganic mulch such as decomposed granite or gravel is permitted.

1-foot foundation safety zone required

A completely vegetation-free zone is required within 1 foot of the foundation (or to the drip line of the eave, whichever is greater). No plants, mulch, or organic material of any kind in this zone.

Phase 1 deadline est. 2027–2028

Landscaping compliance is required within 3 years of final rule adoption. With adoption expected late 2026, the Phase 1 deadline is estimated 2027–2028. Start now to avoid contractor bottlenecks.

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What Zone Zero requires for landscaping

Under the April 2026 Board of Forestry draft, combustible vegetation and ground cover within 5 feet of any structure must be removed. The zone is divided into two areas with different requirements.

Bark mulch, wood chips, pine straw, dead or dying vegetation, stored firewood, combustible planters and window boxes, petroleum-based containers, and any loose combustible materials must all be removed from within 5 feet of any structure.

Individual potted plants and in-ground plants may be permitted in the 1–5 foot zone under strict conditions, separated from walls, eaves, windows, and other plants. No plants are permitted in the 0–1 foot foundation zone.

Trees within Zone Zero must be trimmed to maintain 1 foot clearance from structure walls and 5 feet clearance between the lowest branches and the roof surface. Dead branches and ladder fuels must be removed.

Landscaping and Vegetation: Frequently Asked Questions

Common questions about Zone Zero landscaping compliance, answered clearly.

Can I keep plants within 5 feet of my house?

Limited plants may be permitted in the 1–5 foot zone under strict conditions. They must be separated from walls, eaves, windows, vents, and other plants, and must be low-growing and low-combustibility. No plants of any kind are allowed within 1 foot of the foundation. Check with your local AHJ for approved plant lists.

Does bark mulch have to be completely removed?

Yes. Bark mulch, wood chips, and all organic mulch must be removed from within 5 feet of any structure. Inorganic alternatives like decomposed granite, gravel, river rock, or concrete pavers are permitted and recommended as ground cover replacements.

What about potted plants on my patio or deck?

Individual potted plants may be permitted within Zone Zero under the draft regulations, provided they are separated from walls, eaves, windows, and other combustible materials. Potted plants must not be clustered and should be in non-combustible containers (ceramic, metal, or concrete, not plastic or wood).

Do I need to remove my lawn or grass?

Lawn grass is generally lower combustibility than mulch or shrubs and may be permitted under the draft regulations, particularly if kept green and mowed. Dead or dry grass must be removed. The foundation safety zone (0–1 foot) must be completely clear of all vegetation including grass.

When do I need to complete Phase 1 landscaping changes?

Phase 1 compliance is required within 3 years of final regulation adoption. With adoption expected late 2026, the Phase 1 deadline is estimated 2027–2028 for most properties. New construction must comply immediately upon adoption. Starting early is strongly recommended, as qualified landscapers in high-risk areas will be in high demand.

Can I do the landscaping work myself or do I need a contractor?

Basic removal like clearing mulch, pulling dead vegetation, and trimming trees can be done by homeowners. For tree trimming near structures, a licensed arborist is recommended. A licensed contractor can conduct a full Zone Zero assessment and document your compliance for your local AHJ.

Ready to get your landscaping assessed for Zone Zero compliance?

Phase 1: Landscaping and Vegetation

Get a free landscaping compliance assessment

Phase 1 deadlines are approaching. Connect with a licensed local contractor who can assess your Zone Zero landscaping, recommend compliant alternatives, and document your compliance.