Invasive Plant Rules in Kentucky (2026)
3 rules on the books across Kentucky, 3 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Prohibited Species
Plants that are banned or regulated in your area, including Japanese knotweed, kudzu, purple loosestrife, and other species that threaten native ecosystems.
Lexington
Heavy RestrictionsLexington-Fayette's nuisance code doesn't just cap weed height: it names specific invasive and noxious species outright…
Read full rule →Louisville
Some RestrictionsLouisville Metro's Land Development Code bars any plant material used to meet landscaping requirements from being on…
Read full rule →Tree-of-Heaven Removal
Rules requiring removal of Ailanthus altissima (tree-of-heaven), the invasive species that hosts spotted lanternfly, including state programs and city-level mandates.