The Metro Council of Nashville and Davidson County has approved an ordinance updating landscaping standards in the zoning code, amending Section 17.24.030. The new regulations introduce minimum quality and size requirements for trees, shrubs, and other plant materials, ensuring compliance with the American Standard for Nursery Stock (ANSI Z60.1-2014). It mandates specific caliper sizes for canopy, understory, and evergreen trees at planting, as well as height requirements for shrubs. Additionally, the ordinance promotes biodiversity by requiring tree diversity thresholds and a minimum of 51% native species in tree plantings. It also addresses planting restrictions in utility easements and proximity to infrastructure such as fire hydrants and light poles. These changes are designed to improve sustainability, increase tree survival rates, and enhance the overall aesthetic and ecological resilience of Nashville’s urban landscape.
This decision strengthens Nashville’s environmental resilience by improving landscape standards, ensuring higher-quality plant materials, and promoting biodiversity. It supports the city's sustainability efforts and aligns with NashvilleNext's long-term vision for a greener, healthier urban environment.