Native Plants: Costa Mesa vs Santa Ana
How do native plants rules compare between Costa Mesa, CA and Santa Ana, CA?
Costa Mesa and Santa Ana 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 →Santa Ana, CA
Orange County
Santa Ana encourages the use of native and drought-tolerant plants for landscaping in compliance with the California Model Water Efficient Landscape Ordinance (MWELO). New development and major landscape projects must meet water efficiency standards.
View full Santa Ana rules →Key Facts Comparison
| Fact | Costa Mesa | Santa Ana |
|---|---|---|
| State Requirement | MWELO for projects 500+ sq ft | - |
| Turf Rebates | Mesa Water District programs | - |
| HOA Restrictions | Limited by Civil Code §4735 | Cannot prohibit drought-tolerant plants |
| Climate Zone | Mediterranean — native species ideal | - |
| Plan Review | Development Services (714) 754-5245 | - |
| Native Plants | - | Encouraged, not mandated for existing homes |
| MWELO Threshold | - | Landscapes over 500 sq ft (new/rehab) |
| State Law | - | Gov. Code §65595; Civ. Code §4735 |
| Permit Required | - | No (for residential replacement) |
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.
Santa Ana FAQ
Can I replace my lawn with native plants in Santa Ana?
Yes. No permit is required to replace a residential lawn with native or drought-tolerant plants. HOAs cannot prohibit this change under California Civil Code Section 4735.
Does Santa Ana require drought-tolerant landscaping?
New development and major landscape projects over 500 square feet must comply with MWELO water efficiency standards. Existing residential properties are encouraged but not required to use drought-tolerant plants.
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