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Invasive Plant Rules in California (2026)

97 rules on the books across California, 80 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

Prohibited Species

Plants that are banned or regulated in your area, including Japanese knotweed, kudzu, purple loosestrife, and other species that threaten native ecosystems.

Fremont

Heavy Restrictions

Fremont Municipal Code Section 8.20.010 bans willfully planting, growing or keeping any castor bean plant (Ricinus…

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Hayward

Heavy Restrictions

Hayward's Bay-Friendly Water Efficient Landscape Ordinance bans invasive plant species outright in any covered…

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Lake County

Heavy Restrictions

Lake County makes it a crime to bring, keep, sell, gift, or plant nine listed non-native invasive aquatic plants…

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Livermore

Heavy Restrictions

Livermore's landscape ordinance flatly prohibits installing invasive or noxious plant species in any regulated project…

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Moreno Valley

Heavy Restrictions

Invasive plants like Arundo donax, pampas grass, tamarisk, and tree of heaven are discouraged or banned in new…

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San Jose

Heavy Restrictions

San Jose follows the California Invasive Plant Council (Cal-IPC) guidance and the Santa Clara Valley Habitat Plan…

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San Marcos

Heavy Restrictions

San Marcos prohibits invasive plant species in covered landscape projects under its Water Efficient Landscape…

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Sonora

Heavy Restrictions

Sonora does not maintain a specific local prohibited plant species list, but California state law regulates invasive…

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Temecula

Heavy Restrictions

Temecula prohibits highly flammable and invasive plant species near structures, particularly in Wildland-Urban…

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Chula Vista

Significant Restrictions

CVMC 12.32.070 makes it unlawful to plant a named list of trees and shrubs, including blue gum eucalyptus, black locust…

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Cupertino

Significant Restrictions

Cupertino's Landscape Ordinance bans installing any invasive plant species or noxious weed as part of a new or…

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Dublin

Significant Restrictions

Dublin, California bans invasive and noxious plant species from landscape designs citywide. Municipal Code Section…

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El Dorado County

Significant Restrictions

El Dorado County bans planting seven tree species in public road rights-of-way. Section 12.12.070 outlaws Acacia, Black…

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Placer County

Significant Restrictions

Landscape design plans for covered Placer County projects may not use invasive or noxious plant species. Section…

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Ventura County

Significant Restrictions

In the county's Habitat Connectivity and Wildlife Corridors overlay zone, intentionally planting invasive plant species…

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Vista

Significant Restrictions

Vista Municipal Code Section 8.62.020(C) declares any noxious or invasive weed or plant that a federal, state, or…

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Yuba County

Significant Restrictions

Unincorporated Yuba County bans installing any plant on the Cal-IPC Exotic Pest Plants of Greatest Ecological Concern…

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Anaheim

Some Restrictions

Anaheim does not publish its own list of prohibited plants but enforces California Food and Agriculture Code 7270…

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Chico

Some Restrictions

Qualifying new landscape projects in Chico must stick to non-invasive plant species drawn from the state WUCOLS…

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Chino

Some Restrictions

New and rehabilitated landscaping in Chino may not include invasive plant species listed by the California Invasive…

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Chino Hills

Some Restrictions

Chino Hills bars the use of invasive plant species, such as those on the California Invasive Plant Council's list, in…

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Clovis

Some Restrictions

Clovis Municipal Code Section 9.28.090(C)(5) requires owners of nonresidential, multifamily, and planned-development…

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El Cajon

Some Restrictions

El Cajon bars invasive plant species from any landscape documentation package project: new landscaped areas of 500…

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Escondido

Some Restrictions

Escondido's water-efficient landscape ordinance defines invasive species as plants not historically found in California…

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Hawthorne

Some Restrictions

Landscaped areas required under Hawthorne's zoning title must be planted from the city's approved Appendix A plant…

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Irvine

Some Restrictions

Landscape plans for new development within 100 feet of the San Joaquin Marsh or San Diego Creek in Irvine's IBC…

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Los Angeles

Some Restrictions

California regulates invasive plants through the California Food and Agricultural Code and the Department of Food and…

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Los Angeles County

Some Restrictions

The LA County Agricultural Commissioner maintains a list of noxious weeds and invasive plant species. California's…

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Manteca

Some Restrictions

Manteca's landscape design standards flatly prohibit introducing invasive plant species into any required landscaping…

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Marin County

Some Restrictions

Marin County Code Section 6.60.010 makes it unlawful to knowingly let 13 named noxious weeds, including Canada thistle…

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Monterey County

Some Restrictions

Planting Plans for major landscape projects (2,500+ square feet) in unincorporated Monterey County must strictly…

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Murrieta

Some Restrictions

Murrieta's landscaping standards bar invasive plant species from covered projects, requiring extra caution near parks…

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Oakland

Some Restrictions

Oakland Municipal Code § 8.18.060 makes it an infraction to let Scotch or Canada thistle, Russian thistle, Mexican…

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Oceanside

Some Restrictions

Any project that files a landscape plan with the City of Oceanside is barred from adding invasive plant species to the…

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Orange County

Some Restrictions

California's noxious weed list applies in Orange County. The OC Agricultural Commissioner enforces plant quarantines…

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Perris

Some Restrictions

Perris's landscape ordinance requires new and rehabilitated landscaping to avoid invasive plant species, especially…

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Petaluma

Some Restrictions

Petaluma bans plant species listed as invasive by the California Invasive Plant Council from the landscape design of…

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Pomona

Some Restrictions

Pomona's Zoning and Development Code bans planting any species on the California Invasive Plant Inventory under Sec…

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Rancho Cucamonga

Some Restrictions

Any landscaping installed under a Rancho Cucamonga development or design review permit must skip every species on the…

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Riverside County

Some Restrictions

Any development in unincorporated Riverside County that needs an approved landscaping plan, including qualifying plot…

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San Bernardino

Some Restrictions

San Bernardino requires property owners to destroy and remove castor bean (Ricinus communis) plants once the health…

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San Clemente

Some Restrictions

San Clemente's Property Maintenance Code bans noxious weeds outright and requires every developed property to stay free…

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San Diego

Some Restrictions

San Diego's Land Development Code bars planting invasive plant species in any landscaping required for new development…

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San Diego County

Some Restrictions

In unincorporated San Diego County, landscape plans for qualifying new construction must keep invasive plant species…

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San Leandro

Some Restrictions

New and rehabilitated landscapes on commercial, industrial, and larger residential projects in San Leandro cannot…

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Santa Clara County

Some Restrictions

New landscape and irrigation projects on unincorporated Santa Clara County land can't use California Invasive Plant…

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Santa Clarita

Some Restrictions

Any Santa Clarita landscape plan required for an administrative or discretionary land use permit must skip plants the…

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Santa Rosa

Some Restrictions

Any covered landscape project in Santa Rosa, new or rehabilitated construction needing a building or grading permit…

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Sonoma

Some Restrictions

The City of Sonoma bans planting exotic, nonnative, or nonriparian vegetation inside the required setback along Sonoma…

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Sonoma County

Some Restrictions

Sonoma County bans invasive plants rated moderate or higher on the California Invasive Plant Inventory from any new or…

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Tuolumne County

Some Restrictions

Tuolumne County defers to the Tuolumne County Agricultural Commissioner and California Food & Agriculture Code §5004…

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Union City

Some Restrictions

Union City's water-efficient landscape ordinance bars installing any species on the California Invasive Plant Council's…

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Vallejo

Some Restrictions

Vallejo's water-efficient landscape ordinance flatly bars invasive plant species, specifically those on the California…

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Yolo County

Some Restrictions

Yolo County's water-efficient landscaping ordinance, Sec. 8-3.108(a)(5), bans planting invasive species on any covered…

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Alameda

Light Restrictions

Alameda's Bay-Friendly and Water-Efficient Landscape Ordinance bars installing any plant species the California…

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Butte County

Light Restrictions

In Butte County's urban zones, any landscaping installed under a building permit must be picked from a county-approved…

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Eastvale

Light Restrictions

Eastvale's Water Efficient Landscape Regulations direct that any plant species with invasive potential be avoided in…

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Lancaster

Light Restrictions

Lancaster's landscape ordinance defines and discourages invasive plants rather than banning them outright. Section…

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Los Banos

Light Restrictions

Los Banos does not ban any specific invasive plant by name. Its landscape ordinance defines invasive plant species and…

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Madera County

Light Restrictions

Unincorporated Madera County's landscape ordinance directs that invasive plant species be avoided in new and…

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Menifee

Light Restrictions

Menifee's landscape water-efficiency ordinance requires every covered planting plan to avoid invasive species…

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Merced

Light Restrictions

Merced does not publish a banned-species list, but its landscaping ordinance requires at least 90 percent of the plants…

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Norwalk

Light Restrictions

Norwalk's Water Efficient Landscape Ordinance defines invasive plant species as plants not historically found in…

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Palmdale

Light Restrictions

Palmdale's water efficient landscape ordinance tells every project applicant to avoid invasive plant species when…

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Redlands

Light Restrictions

Redlands' landscape ordinance defines invasive plant species and directs landscape design plans away from them…

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Riverside

Light Restrictions

The California Department of Food and Agriculture maintains the statewide Noxious Weed list (Food & Ag Code §7270+)…

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Roseville

Light Restrictions

Roseville's landscape ordinance discourages, but does not ban, invasive plants: Section 14.18.050(B)(4)(g)(ix) states…

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Sacramento

Light Restrictions

Sacramento's landscape design rules don't ban invasive plants outright. City Code § 15.92.100(A)(1)(g) 'strongly…

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Santa Clara

Light Restrictions

Santa Clara does not run a separate invasive-plant ordinance, but its tree protection code carves out eight species it…

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Solano County

Light Restrictions

Solano County does not keep a list of banned plants; instead, any Resource Protection Use zoning approval must show it…

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Tracy

Light Restrictions

Tracy's landscape ordinance does not ban invasive plants outright, but section 11.28.390(a)(1)(G) "strongly…

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Upland

Light Restrictions

Upland's landscaping chapter tells every project subject to its design standards to avoid invasive plants, singling out…

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West Sacramento

Light Restrictions

West Sacramento's landscaping ordinance prohibits invasive plant species in city rights-of-way and easements, and…

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Whittier

Light Restrictions

Whittier's water-efficient landscaping ordinance defines invasive plant species and tells landscape designers on…

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Baldwin Park

Few Restrictions

Baldwin Park does not ban specific invasive plants outright. Municipal Code § 153.160.090(A)(1)(f), part of the…

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Fairfield

Few Restrictions

Fairfield's landscape design standards discourage, but do not ban, invasive plant species. City Code Section…

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Vacaville

Few Restrictions

Vacaville's water-efficient landscape ordinance discourages, but does not ban, invasive plant species in new or…

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Front Yard Gardens

Whether your city allows vegetable gardens, wildflower meadows, or native plant landscapes in the front yard, including any height limits or appearance standards.

Tuolumne County

Heavy Restrictions

Tuolumne County does not restrict front yard vegetable gardens or edible landscaping. California AB 2561 (2022)…

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Moreno Valley

Significant Restrictions

California law protects front-yard vegetable and drought-tolerant gardens. HOAs cannot require turf or ban edible…

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Brentwood

Some Restrictions

Brentwood requires homes built after 1987 to keep at least half of the front yard and corner-lot side yard covered in…

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Butte County

Some Restrictions

Front yards in Butte County's urban residential zones must be planted, not paved. Section 24-115(A)(1) requires plants…

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Los Angeles

Some Restrictions

Los Angeles encourages front yard gardens including drought-tolerant landscaping and edible gardens. LAMC Section 12.21…

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San Jose

Some Restrictions

San Jose allows front yard vegetable gardens. California AB 2561 (2022) protects the right to grow food on residential…

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Orange County

Light Restrictions

In unincorporated Orange County, flower, fruit and vegetable gardening is allowed in every residential district, but…

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Sonora

Light Restrictions

Sonora does not prohibit front yard vegetable gardens or native plant landscaping. California Government Code section…

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Anaheim

Few Restrictions

Front-yard native and drought-tolerant gardens are expressly protected in Anaheim by California Civil Code 4735, which…

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Yuba County

Few Restrictions

Unincorporated Yuba County counts front-yard vegetable and edible-plant gardens as landscaped area, so homeowners can…

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