Invasive Plant Rules in Indiana (2026)
6 rules on the books across Indiana, 4 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.
Evansville
Some RestrictionsEvansville folds state- and federal-listed invasive and noxious plants into its 'rank vegetation' ban, prohibiting…
Read full rule →Indianapolis
Some RestrictionsIndianapolis bars planting box elder, silver maple, tree-of-heaven, mulberry, Siberian elm and eleven other listed…
Read full rule →Porter County
Some RestrictionsPorter County's Unified Development Ordinance requires all landscaping material installed to satisfy the county's…
Read full rule →Tippecanoe County
Some RestrictionsA large-scale solar farm site in Tippecanoe County has to be planted and kept free of every species on the Indiana…
Read full rule →Front Yard Gardens
Whether your city allows vegetable gardens, wildflower meadows, or native plant landscapes in the front yard, including any height limits or appearance standards.
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.