Nevada County, CA Landscaping Rules: Native Plants (2026)

No Nevada County ordinance mandates native plantings on private property, and homeowners are free to choose ornamental or native species. However, two County-relevant frameworks favor native and climate-adapted plants. First, water efficiency: California's Model Water Efficient Landscape Ordinance (MWELO) - which every local agency, including Nevada County, must adopt or match with a local Water Efficient Landscape Ordinance at least as effective - drives new and rehabilitated landscapes toward climate-adapted, drought-tolerant plant selection, efficient irrigation, and limited high-water-use turf. Many California-native species naturally satisfy these low-water targets, making natives a practical compliance path for qualifying projects. Second, fire safety: the Hazardous Vegetation Abatement ordinance (Sec. G-IV 7.x) regulates flammability and placement within defensible space, so fire-resistant, well-spaced plantings (often natives) are encouraged near homes - although the ordinance defines 'hazardous vegetation' by combustibility, not by whether a plant is native (Sec. G-IV 7.3.L). The County's Resource Conservation District and local fire-safe councils promote native, fire-wise plant lists, but these are guidance, not a mandate. Bottom line: natives are encouraged and often the easiest way to meet water and fire goals, but they are not legally required for an ordinary residential yard in unincorporated Nevada County.