Invasive Plant Rules in Monterey County, CA (2026)
1 rule for unincorporated Monterey County, California.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Monterey County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Prohibited Species
Planting Plans for major landscape projects (2,500+ square feet) in unincorporated Monterey County must strictly exclude invasive plants: Chapter 16.63 bars species listed on the California Invasive Plant Inventory, the USDA invasive/noxious weeds database, or the county's own Landscape Manual, and it encourages removing invasive plants already growing on the site.
Monterey County Invasive Plant Prohibition
Some RestrictionsMonterey County Code § 16.63.070(B)(5); § 16.63.020(W)
"Invasive plant" means a species of plants not historically found in California that spreads outside cultivated areas and can damage environmental or economic resources and is listed as an invasive plant in either the California Invasive Plant Inventory; USDA invasive, noxious weeds database; or the Landscape Manual. ... Invasive plants are strictly prohibited and eradication of invasive plants...
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