Lake Elsinore, CA Landscaping Rules: Native Plants (2026)

Lake Elsinore's native plant requirement lives in Chapter 17.36, the Hillside Development District (HDD) overlay that applies only to parcels carrying the 'HPD' suffix under § 17.36.030. Any hillside development project must submit a landscaping plan under § 17.36.040(D) showing the disposition of existing trees and proposed vegetation, with attention to slope stability and ongoing maintenance of roadway and driveway vegetation. Once approved, § 17.36.060(A) requires the plan to be followed, and failing to irrigate and maintain landscaping according to the approved plan is itself a code violation.

The substantive standard, § 17.36.060(B), directs that landscaping emphasize native plants and steers applicants away from species of high flammability, whether by nature or dense planting near structures, a direct response to wildfire risk on Lake Elsinore's hillsides. Subsection (C) protects existing native vegetation outright, letting it remain, while capping any added ground cover within 10 feet of a structure at three feet in height, with the allowed height stepping up two feet for each additional linear foot beyond that 10-foot line. Subsection (D) separately bars trees and nonnative evergreen shrubs from within 10 feet of any chimney to avoid creating a fire hazard.

These landscaping rules sit alongside the chapter's grading, soils, and hydrology report requirements in §§ 17.36.040 and 17.36.050, administered by the Community Development Department, Design Review Board, and Planning Commission before a hillside development permit issues.