Native Plants: Costa Mesa vs Irvine
How do native plants rules compare between Costa Mesa, CA and Irvine, CA?
Costa Mesa and Irvine have similar restriction levels.
Costa Mesa, CA
Orange County
Costa Mesa encourages native and drought-tolerant landscaping through compliance with California's Model Water Efficient Landscape Ordinance (MWELO). Rebates for turf replacement are available through Mesa Water District and Metropolitan Water District programs.
View full Costa Mesa rules →Irvine, CA
Orange County
Irvine encourages native and drought-tolerant plants through its Sustainability in Landscaping ordinance (IMC Title 5, Division 7) and MWELO compliance. New landscapes must meet water efficiency standards favoring low-water-use species.
View full Irvine rules →Key Facts Comparison
| Fact | Costa Mesa | Irvine |
|---|---|---|
| State Requirement | MWELO for projects 500+ sq ft | - |
| Turf Rebates | Mesa Water District programs | - |
| HOA Restrictions | Limited by Civil Code §4735 | - |
| Climate Zone | Mediterranean — native species ideal | - |
| Plan Review | Development Services (714) 754-5245 | - |
| Native Plants | - | Encouraged through ordinance |
| MWELO | - | Required for landscapes over 500 sq ft |
| HOA Restriction | - | Cannot prohibit drought-tolerant plants |
| Code Section | - | IMC Title 5, Division 7 |
| Rebates | - | IRWD turf replacement rebates |
Highlighted rows indicate differences between cities.
Costa Mesa FAQ
Can I replace my lawn with native plants in Costa Mesa?
Yes, and it is encouraged. Turf removal rebates are available through Mesa Water District and Metropolitan Water District programs.
Can my HOA block drought-tolerant landscaping in Costa Mesa?
No. California Civil Code Section 4735 prevents HOAs from unreasonably restricting water-efficient and drought-tolerant landscaping.
What native plants work well in Costa Mesa?
California sagebrush, buckwheat, manzanita, toyon, and native grasses are well-adapted to Costa Mesa's Mediterranean climate and low water requirements.
Irvine FAQ
Does Irvine encourage native plant landscaping?
Yes. The city's Sustainability in Landscaping ordinance and IRWD rebate programs encourage native and drought-tolerant landscaping.
Can my HOA require a green lawn in Irvine?
No. Under California Civil Code Section 4735, HOAs cannot prohibit drought-tolerant landscaping.
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