Invasive Plant Rules in Utah (2026)
9 rules on the books across Utah, 9 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.
Washington County
Heavy RestrictionsWashington County bars planting any invasive plant species the county identifies, as part of the Plant Selection…
Read full rule →Eagle Mountain
Some RestrictionsEagle Mountain names six noxious weeds under EMMC 8.07.020(B): kochia, Russian thistle, Jim Hill mustard, cheatgrass…
Read full rule →Layton
Some RestrictionsLayton defines a 'weed' for code-enforcement purposes to include any plant specified as a noxious weed under the Utah…
Read full rule →Lehi
Some RestrictionsLehi's community forestry code defines invasive species and lets the Urban Forester order removal of any Public Tree or…
Read full rule →Salt Lake City
Some RestrictionsSalt Lake City requires property owners to remove and eradicate noxious weeds, including every species named on the…
Read full rule →Utah County
Some RestrictionsUtah County can declare a plant a County noxious weed even if it is not on the state's list, and can force any property…
Read full rule →West Jordan
Some RestrictionsWest Jordan's nuisance ordinance bans noxious weeds on any property in the city. City Code section 5-3-1A9a folds the…
Read full rule →St. George
Light RestrictionsSt. George's forestry code flags tamarisk, noxious weeds, briars, and underbrush as undesirable vegetation to be…
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.