Invasive Plant Rules in Missouri (2026)
7 rules on the books across Missouri, 6 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.
Florissant
Significant RestrictionsFlorissant's Code of Ordinances § 213.075 declares invasive, non-native, exotic plants a public nuisance citywide and…
Read full rule →St. Louis County
Significant RestrictionsEven where St. Louis County lets a property owner grow a managed natural landscape taller than the normal 8-inch mowing…
Read full rule →Kansas City
Some RestrictionsKansas City's nuisance code (§ 48-30) declares it a nuisance to let invasive plants, noxious plants, or…
Read full rule →Lees Summit
Some RestrictionsLee's Summit Code Section 30-38 keeps poison ivy, poison oak and poison sumac classified as noxious plants even inside…
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.
Kansas City
Some RestrictionsKansas City lets homeowners keep native or pollinator front-yard plantings taller than ten inches only if the bed…
Read full rule →Columbia
Light RestrictionsColumbia's landscape code affirmatively allows front-yard vegetable, community and native-plant gardens in Boone…
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.