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Los Banos, CA Invasive Plant Rules: Prohibited Species (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Rule type
Discouraged, not banned
Reference list
California Invasive Plant Council inventory
Governing section
Section 9-6.03.06(a)(1)(G)
Applies to
New/rehab landscape projects under Ch. 9-6

Summary

Los Banos does not ban any specific invasive plant by name. Its landscape ordinance defines invasive plant species and strongly discourages using any plant listed by the California Invasive Plant Council in new or rehabilitated landscape projects, folding that guidance into the same design-plan review that covers native plants and water use.

"Invasive plant species" means species of plants not historically found in California that spread outside cultivated areas and can damage environmental or economic resources. ... The use of invasive plant species, such as those listed by the California Invasive Plant Council, is strongly discouraged.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4356507; v3 updated 2025-03-05).

Full Breakdown

02 of the Municipal Code defines an 'invasive plant species' as a species not historically found in California that spreads outside cultivated areas and can damage environmental or economic resources, noting that county agricultural agencies may separately regulate such species as noxious weeds and that the California Invasive Plant Inventory and the USDA's invasive and noxious weeds database maintain the reference lists. 06(a)(1)(G), the landscape design plan criteria applied to every new development project of 500 square feet or more and every rehabilitated landscape of 2,500 square feet or more that needs a building, landscape, plan check, or design-review permit.

The provision states plainly that using invasive plant species, such as those on the California Invasive Plant Council list, is strongly discouraged. It stops short of an outright prohibition, so the City has no permit denial or citation built specifically around planting an invasive species; the discouragement instead sits alongside the ordinance's broader push toward native and climate-appropriate plants, and toward avoiding plants with invasive surface roots that could damage buildings, sidewalks or power lines. A project applicant preparing the required landscape design plan and Landscape Documentation Package is expected to account for this guidance, and Public Works reviews the plan before signing a certificate of completion.

Violations & Fines

Because Section 9-6.03.06(a)(1)(G) discourages rather than prohibits invasive species, there is no citation written specifically for planting one. If a landscape project as a whole fails to comply with the chapter's design and water-budget requirements, the general Section 9-6.09 penalty applies: an infraction or misdemeanor charge, capped fines and jail time under Government Code Section 36901, and available administrative penalties under Title 4, Chapter 11.

Frequently Asked Questions

Is it illegal to plant an invasive species in Los Banos?
Not by name. Municipal Code Section 9-6.03.06(a)(1)(G) says using invasive plant species, such as those listed by the California Invasive Plant Council, is strongly discouraged in landscape design plans, but the ordinance does not make planting one a standalone violation or set a specific fine for it.
What counts as an invasive plant species under the code?
Section 9-6.02 defines it as a species not historically found in California that spreads outside cultivated areas and can damage environmental or economic resources, adding that county agricultural agencies may regulate such species separately as noxious weeds under state law.
Which projects have to consider the invasive-species guidance?
Any new landscape of 500 square feet or more, or rehabilitated landscape of 2,500 square feet or more, that needs a building, landscape, plan check, or design-review permit must submit a landscape design plan addressing the criteria in Section 9-6.03.06, including the invasive-species discouragement.

Sources & Official References

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