Las Vegas restricts water-intensive landscaping through SNWA regulations. The Water Smart Landscapes Rebate program pays residents to remove grass. Noxious weeds are regulated under Nevada state law (NRS 555). Commercial landscapes must use approved desert-adapted species under LVMC Chapter 19.12.
Las Vegas addresses invasive and problematic plant species primarily through water conservation policy rather than a traditional prohibited species list. The Southern Nevada Water Authority (SNWA) and Clark County enforce water waste regulations that effectively limit water-intensive non-native species. Assembly Bill 356 (2021) mandated removal of non-functional turf in the Las Vegas Valley by 2027, affecting approximately 31% of total grass area. The Water Smart Landscapes Rebate program pays up to $5 per square foot for removing grass and replacing it with desert landscaping. At the state level, Nevada Revised Statutes Chapter 555 (Control of Insects, Pests and Noxious Weeds) authorizes the Nevada Department of Agriculture to designate and control noxious weeds. Common noxious weeds in the Las Vegas area include perennial pepperweed (Lepidium latifolium), Saharan mustard, and Russian thistle. LVMC Chapter 19.12 specifies landscape standards for commercial development, requiring use of drought-tolerant, desert-adapted species. Tamarisk (saltcedar) along waterways is an invasive species of concern managed at the regional level.
Water waste violations: fines from $80 (first offense) to $1,280 (fourth offense). Failure to remove non-functional turf by 2027 deadline: subject to SNWA enforcement.
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