Huntington Beach, CA Landscaping Rules: Native Plants (2026)
Key Facts
- Governing chapter
- HBMC Chapter 14.52
- Native/very-low plant factor
- 0.1 (lowest tier)
- Reference ETo for Huntington Beach
- 43 inches/year
- Moderate water plant factor
- 0.4 to 0.6
- Review authority
- City landscape architect
Summary
Huntington Beach's Water Efficient Landscape Requirements let any landscape design go all-native, and native or highly drought-tolerant plantings get the lightest water budget on the books: a plant factor of just 0.1, the lowest tier the city's formula recognizes.
For calculation of the EAWU, a temporarily irrigated hydrozone area, such as an area of highly drought-tolerant native plants that are not intended to be irrigated after they are fully established, shall be defined as a very low water use hydrozone with a plant factor of 0.1. ... Plants shall be selected appropriately based upon their adaptability to the climatic, geologic, and topographic conditions of the site. Protection and preservation of native species and natural areas is encouraged.
Full Breakdown
52, every landscape documentation package submitted with a building or planning permit must run the maximum applied water allowance (MAWA) against the estimated applied water use (EAWU), using an ETo of 43 inches per year for the city. 0 for high water users. 1 plant factor, even during the temporary irrigation period used to get the planting through establishment. 070(G)(9) must delineate and label each hydrozone and identify its water-use tier, so a native or naturalized planting scheme has to be mapped and factored into the water budget calculation the same as any other, but it earns the most favorable multiplier available. There is no separate native-plant permit; compliance rides on the standard landscape documentation package reviewed by the City's landscape architect.
Violations & Fines
Landscape documentation packages that misclassify hydrozones, understate irrigation needs, or omit required native/low-water plant factor calculations can be rejected at plan check, and final certificate of occupancy can be withheld under Section 14.52.070(F)(1)(d)(iv) until soil and planting documentation is submitted. Projects are not approved until the EAWU is shown not to exceed the MAWA using the correct plant factors.
Frequently Asked Questions
Does planting an all-native yard require a special permit in Huntington Beach?
Why does using native plants help meet Huntington Beach's water budget?
Can HOA rules in Huntington Beach ban native or drought-tolerant plants?
Sources & Official References
Other rules in Huntington Beach
California rules heatmap·Compare Huntington Beach to another location·View the California landscaping rules overview
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