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Landscaping Rules in Pima County, AZ (2026)

5 county-level rules, plus city-specific rules for 4 cities 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.

Tree Removal & Heritage Trees

Pima County Code Ch. 18.72 requires permits for native plant removal during development. ARS 3-904 makes destroying saguaro, ironwood, or palo verde without an ADA permit a Class 4 felony.

Pima County Tree and Native Plant Removal Permits

Heavy Restrictions

A.R.S. § 3-904 — Destruction of protected plants by private landowners

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. 3. The owner or the owner's agent notifies the department pursuant to this secti...

Weed Ordinances

Unincorporated Pima County property owners must clear weeds, rubbish and debris that create a health or safety hazard, or the county will abate it and bill the cost.

Pima County Weeds and Debris Removal Rule

Some Restrictions

Pima County Code § 7.33.020

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.

Water Restrictions

When the Board of Supervisors declares a drought stage for unincorporated Pima County, Code Section 8.70.040 kicks in escalating watering-day and outdoor water-use limits: Stage 2 restricts landscape irrigation to the hours of 7 p.m. to 7 a.m. and bans misters, fountains and overseeding turf.

Pima County Drought-Stage Watering Rules

Significant Restrictions

Pima County Code § 8.70.040(B)

8.70.040 Drought Stages-Required drought conservation measures. Following the declaration of a drought stage, no person may make, cause, use, or permit the use of water...in a manner contrary to any provision of this section. The water use restrictions in each less restrictive stage apply to all more restrictive stages unless the higher stage has a more stringent requirement on the same subje...

Rainwater Harvesting

In unincorporated Pima County, rainwater harvesting systems and cisterns are allowed by-right in every zoning district, but Zoning Code Section 18.07.030(R) sets mosquito screening, anti-drowning, drainage and setback rules, with size-based exemptions from yard and lot-coverage limits.

Pima County Rainwater Harvesting Standards

Some Restrictions

Pima County Code § 18.07.030(R)

R. Rainwater Harvesting System. 1. Rainwater harvesting systems are permitted in all zones, subject to the requirements and exceptions of this subsection: a. Exposed openings to cisterns shall be screened with a corrosion resistant metallic fine mesh to prevent mosquitoes from entering. b. Large openings in cisterns shall be securely fastened to prevent accidental drowning. c. Overflow or dis...

Native Plants

Pima County Zoning Code Chapter 18.72 (Native Plant Preservation) requires protection and salvage of certain native plants during development. Saguaro cacti, ironwood, palo verde, and mesquite are specifically protected. Arizona Native Plant Law (ARS 3-901 et seq.) requires permits to destroy or relocate protected plants.

Landscaping: Native Plants

Some Restrictions

A.R.S. § 3-904 — Destruction of protected plants by private landowners

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. 3. The owner or the owner's agent notifies the department pursuant to this secti...

Landscaping Rules by City in Pima County

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

All Pima County ordinances

See every category we cover for Pima County: parking, noise, fences, fires, animals, pools, and more.

Pima County Ordinance Hub →