Las Vegas, NV Invasive Plant Rules: Prohibited Species (2026)

140(C)(7), the Landscaping standard of the HS-O Hillside Overlay District covering the City's boundary along the Spring Mountain Range, requires landscape improvements on the overall project site to integrate with the natural topography and existing or indigenous vegetation, using plant materials to mitigate development impacts on washes, slopes and other sensitive environmental features. Subparagraph (a) is an outright prohibition: the use of non native or competitive species that could threaten the native flora within the area is prohibited. Subparagraph (i) adds a design duty, requiring landscaping to avoid invasive species that could negatively impact indigenous plant species, and directs that invasive species be identified through a recognized resource such as a local Cooperative Weed Management Area rather than left to guesswork.

The same paragraph requires each natural area to contain only species indigenous to the native desert or mountain elevation and climate zone in which it sits, requires plantings to be arranged in random, informal groupings that form a cohesive pattern with existing natural vegetation rather than manicured rows, and requires any plant material used to stabilize a graded slope to blend with surrounding native materials in color and texture to the greatest extent feasible. These standards apply specifically within the Hillside Overlay District; they are not a citywide ban on any particular plant species.