Invasive Plant Rules in Pima County, AZ (2026)

1 county-level rule, plus city-specific rules for 1 city in Pima County, Arizona.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Pima County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Prohibited Species

Pima County's weed ordinance requires owners, lessees and occupants of unincorporated-area property to remove any species listed as a noxious weed in Arizona Administrative Code R3-4-244, including buffelgrass (Pennisetum ciliare), along with rubbish, trash, filth and debris that endangers public health. The county can issue a correction notice, then a formal abatement order, and recover its removal costs as a lien on the property.

Pima County Buffelgrass and Weed Removal Duty

Some Restrictions

Pima County Code § 7.33.010(A)(4), 7.33.020

4. "Weed" includes any species of plant that is listed in Arizona Administrative Code R3-4-244, including Pennisetum ciliare (L.) Link-Buffelgrass 7.33.020 Removal. The owner, lessee or occupant of property shall remove all rubbish, trash, weeds, filth, debris, and dilapidated buildings that constitute a hazard to public health and safety from the property and contiguous areas.

Full ordinance details →Official source ↗

Invasive Plant Rules by City in Pima County

1 cities in Pima County have their own invasive plant rules rules. Each link goes to that city's dedicated page with code citations.

TucsonPop. 542,629

1 verified rule • Prohibited Species

All Pima County ordinances

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Pima County Ordinance Hub →