Layton, UT Landscaping Rules: Native Plants (2026)

036(1)(g) requires that at least 90% of the plants and trees specified on a project's landscape plan be selected from the Weber Basin Water Conservancy District (WBWCD) or Jordan Valley Water Conservancy District (JVWCD) recommended plant lists, or an approved alternative list or resource, chosen because those species suit local temperature ranges and carry moderate to high drought tolerance. 036 generally: commercial, industrial, mixed-use, multi-family, townhome, community-use and PRUD developments, and common areas run by a homeowner's or community association. 035, the preliminary landscape plan's planting schedule must identify each plant's common and scientific name and flag which ones appear on the WBWCD or JVWCD list; alternative water-efficient or water-wise plant resources used successfully in the Great Basin region may be substituted only with the Zoning Administrator or designee's approval.

The final landscape plan must also tabulate the percentage of plants drawn from the approved list to confirm the 90% threshold is met. A related standard requires at least 80% of shrubs and ornamental grasses to be planted in groupings of at least three, and soil at planting sites must be scarified and amended to a six-inch depth to improve water retention and plant survival.