9 county-level rules, plus city-specific rules for 10 cities in Maricopa County, Arizona.
Verified from official government sources
Maricopa County Ordinance P-11 (Abatement Ordinance) requires property owners to maintain lots free of weeds, overgrown vegetation, and fire hazards. While the county does not specify a precise grass height limit like many cities, properties with excessive weed or grass growth that creates a nuisance, fire hazard, or harbors pests may be subject to abatement action by Code Compliance.
Maricopa County has no comprehensive tree trimming ordinance for unincorporated areas. No protected tree species list or tree removal permit system exists at the county level. HOA CC&Rs control tree maintenance in planned communities. Saguaro cacti are protected by state law.
Maricopa County requires protection of state-listed native plants under Arizona's Native Plant Law (ARS 3-901+). Protected species including saguaro, ironwood, palo verde, and mesquite cannot be removed without a permit from the Arizona Department of Agriculture. Non-protected tree removal on private property in unincorporated areas does not require a county permit but may be subject to HOA restrictions.
ARS §3-904
3-904. Destruction of protected plants by private landowners; notice; exception A. This chapter does not prevent the destruction of protected native plants or clearing of land or cleaning or removing protected native plants by the owner of the land or the owner's agent if: 1. The land is in private ownership. 2. The protected native plants are not transported from the land or offered for sale. ...
Maricopa County Ordinance P-11 addresses weed and vegetation control as part of its property abatement program. Properties with excessive weeds that constitute a nuisance, fire hazard, or health concern may receive an Order of Abatement. After 10 days from issuance, the county may enter and remove weeds at the owner's expense.
Maricopa County falls within the Phoenix Active Management Area (AMA) regulated by the Arizona Department of Water Resources (ADWR). Water conservation is critical in this desert region. While the county does not impose specific watering schedules for unincorporated areas, water providers (such as EPCOR, Arizona Water Company) may enforce conservation rules. Landscape watering guidelines recommend irrigating before 8 AM or after 6 PM to minimize evaporation.
Arizona encourages rainwater harvesting. There are no state or county restrictions on collecting rainwater from rooftops or other surfaces. Maricopa County does not require permits for residential rain barrels or cisterns. Arizona offers a state income tax credit for installing rainwater harvesting systems (up to $1,000 under ARS 43-1090.01, though this credit has expired for new installations).
Maricopa County encourages use of native and desert-adapted plants in unincorporated areas. Arizona law (ARS 3-901+) protects certain native plants including saguaro, barrel cactus, ironwood, and palo verde. Removal of protected native plants requires a permit from the Arizona Department of Agriculture. The county zoning ordinance may require salvage of protected plants during development.
ARS §3-904
3-904. Destruction of protected plants by private landowners; notice; exception A. This chapter does not prevent the destruction of protected native plants or clearing of land or cleaning or removing protected native plants by the owner of the land or the owner's agent if: 1. The land is in private ownership. 2. The protected native plants are not transported from the land or offered for sale. ...
Maricopa County does not prohibit artificial turf in unincorporated areas. Given the desert climate and water scarcity, synthetic turf is a common alternative to natural grass. Arizona law (ARS 9-462.01) prevents municipalities from prohibiting xeriscape or drought-tolerant landscaping, and this principle extends to county jurisdiction. HOAs cannot ban artificial turf that is water-conserving.
Backyard composting is permitted in Maricopa County. Arizona's arid climate requires different composting approaches than humid regions. Must not attract pests or create nuisance conditions.
10 cities in Maricopa County have their own landscaping rules rules. Each link goes to that city's dedicated page with code citations.
9 verified rules • Artificial Turf, Composting
9 verified rules • Artificial Turf, Composting
9 verified rules • Artificial Turf, Composting
9 verified rules • Artificial Turf, Composting
9 verified rules • Artificial Turf, Composting
9 verified rules • Artificial Turf, Composting
9 verified rules • Artificial Turf, Composting
9 verified rules • Artificial Turf, Composting
8 verified rules • Artificial Turf, Grass Height Limits
9 verified rules • Artificial Turf, Composting
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