Key Facts Full Breakdown Violations FAQ Sources

Los Angeles County, CA Landscaping Rules: Native Plants (2026)

Few Restrictions

Verified 1 month ago|Source: Title 31 - Green Building Standards Code →

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Key Facts

Encouraged: MWELO and AB 1881
Local Bans: Prohibited by state law
Coastal Areas: Native species required
Water District: May offer rebates

City-specific rules exist: Lancaster, Palmdale, Norwalk, Lakewood, Santa Monica, Torrance, Pomona, West Covina, Inglewood, Compton, Long Beach, Santa Clarita, El Monte, Glendale, Pasadena, Burbank, Downey, and Los Angeles have their own native plants rules that differ from Los Angeles County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Summary

Native and drought-tolerant landscaping is encouraged in unincorporated LA County per MWELO and state water conservation mandates. CA Gov Code 65595 prohibits banning native plant gardens. Coastal areas specifically require native species for erosion control landscaping.

Full Breakdown

Native and drought-tolerant landscaping is actively encouraged in unincorporated LA County through the Model Water Efficient Landscape Ordinance (MWELO). New landscaping projects over 500 sq ft in residential areas must comply with MWELO requirements including maximum applied water allowance calculations. LA County does not mandate native plants specifically but incentivizes them through reduced irrigation requirements under MWELO. Many local water districts offer free native plant guides and rebates for drought-tolerant landscape conversions. The county's LID standards encourage native plantings for stormwater management.

Violations & Fines

MWELO violations apply only to new landscaping installations over 500 sq ft. Non-compliant landscape plans will not receive building permit approval. There are no penalties for existing landscaping. Water waste from over-irrigation may violate water district restrictions with fines ranging from $100-$500 per occurrence depending on the water provider.

Frequently Asked Questions

Does LA County require native plants?

No. The county doesn't mandate native plants but encourages them through MWELO's reduced irrigation requirements. Native and drought-tolerant plants require less water, making it easier to meet water efficiency standards.

What is MWELO?

The Model Water Efficient Landscape Ordinance requires new landscaping projects over 500 sq ft to meet maximum applied water allowance standards. It applies to new construction, rehabilitated landscapes, and large new plantings.

Where can I get help with native plant landscaping?

Contact your local water district for free native plant guides and rebates. The Theodore Payne Foundation and the California Native Plant Society have LA-area chapters with resources. Many nurseries specializing in California natives operate in LA County.

How does Los Angeles County compare?

See how Los Angeles County's native plants rules stack up against other locations.

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Los Angeles County, CA Landscaping Rules: Native Plants (2026)

Key Facts

Summary

Full Breakdown

Violations & Fines

Frequently Asked Questions

Sources & Official References

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