Landscaping Rules in Corona, CA (2026)
8 verified landscaping rules for Corona, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Grass Height Limits
Corona requires grass and weeds to stay under about 6 inches under CMC Chapter 8.20 nuisance rules. Corona Fire runs an annual Weed Abatement Program for hillside and WUI parcels.
Grass Height Limits in Corona
Some RestrictionsTree Trimming
CMC Chapter 12.40 makes property owners maintain parkway street trees with 8 ft sidewalk and 14 ft street clearance. A free Public Works permit is required to remove or heavily prune street trees.
Tree Trimming Rules in Corona
Some RestrictionsCal. Public Resources Code Sec. 4291 (Defensible Space — Tree and Vegetation Maintenance in State Responsibility Areas)
4291. (a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line, except as provided in subparagraph (B). The amount of fuel modification necessary sha...
Tree Removal & Heritage Trees
Removing a Corona street tree requires a free Public Works permit under CMC 12.40 with 1:1 replacement. Private trees are usually exempt unless protected natives in the Hillside Overlay.
Tree Removal Permits in Corona
Some RestrictionsWeed Ordinances
Corona Fire runs an annual Weed Abatement Program (CMC 9.04 and 8.20) requiring weeds cut to 4 inches and 30 ft defensible space. Failure leads to contractor abatement billed plus admin fee.
Weed Abatement in Corona
Heavy RestrictionsCal. Food & Agricultural Code Sec. 5004 (Definition of "Noxious Weed")
“Noxious weed” means any species of plant that is, or is liable to be, troublesome, aggressive, intrusive, detrimental, or destructive to agriculture, silviculture, or important native species, and difficult to control or eradicate, which the director, by regulation, designates to be a noxious weed. In determining whether or not a species shall be designated a noxious weed for the purposes of p...
Water Restrictions
Corona DWP enforces CMC 13.32 with no watering 9 a.m.-6 p.m. and stage-based 2-day-per-week sprinkler limits. AB 1572 phases out potable water on non-functional turf at HOAs by 2031.
Water Use Restrictions in Corona
Heavy RestrictionsRainwater Harvesting
California Water Code 10573 (AB 1750) lets Corona residents collect rainwater in barrels for outdoor use without a permit. Tanks over 5,000 gal or indoor reuse require permits and backflow prevention.
Rainwater Harvesting in Corona
Few RestrictionsNative Plants
Civil Code 4735 and 714.1 protect Corona homeowners installing native and drought-tolerant landscaping. New landscapes over 500 sq ft must comply with the state MWELO under CCR Title 23.
Native Plants and Drought-Tolerant Landscaping in Corona
Few RestrictionsCalifornia Department of Water Resources — Model Water Efficient Landscape Ordinance (MWELO) — Climate-Adapted Plants and Local Adoption Mandate
About 40% of the water Californians use at home is used outdoors. Large water savings can be gained by efficient landscape design, installation, management, and maintenance. This is accomplished by choosing climate adapted plants, improving soil conditions, using, and maintaining high efficiency irrigation equipment and managing the irrigation schedule to fit the plants water needs as they are ...
Artificial Turf
California Civil Code 4735 and 714.1 protect artificial turf in Corona; HOAs cannot ban it. Most residential installs need no permit but must meet drainage and lead-free standards.
Artificial Turf Rules in Corona
Few RestrictionsCal. Civil Code Sec. 4735 (HOA Landscaping — Artificial Turf and Low-Water Plant Protections)
4735. (a) Notwithstanding any other law, a provision of the governing documents or architectural or landscaping guidelines or policies shall be void and unenforceable if it does any of the following: (1) Prohibits, or includes conditions that have the effect of prohibiting, the use of low water-using plants as a group or as a replacement of existing turf. (2) Prohibits, or includes conditions t...
Looking for Riverside County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Corona city rules.
Landscaping Rules in Riverside County →