Invasive Plant Rules in Caldwell, ID (2026)
1 verified invasive plant rules for Caldwell, Idaho, sourced directly from the municipal code and official government pages.
Verified from official government sources
Prohibited Species
Caldwell's landscaping ordinance bans poisonous, toxic or nuisance plant material citywide and blocks specific tree species from street and parking lot planting. City Code § 10-02-09-3(3) incorporates the Trees Not Permitted for Rights-of-Way Property Planting list from the Treasure Valley Tree Selection Guide as the operative species restriction.
Caldwell Prohibited Landscape Plant Species
Some RestrictionsCaldwell City Code § 10-02-09-3(3)
Prohibited Plant Material: Prohibited plant material shall include any that is considered poisonous, toxic, or otherwise poses a nuisance. The plants listed as Trees Not Permitted for Rights-of-Way Property Planting in the Treasure Valley Tree Selection Guide are prohibited from being planted along any street or within any parking lot
Looking for Canyon County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Caldwell city rules.
Invasive Plant Rules in Canyon County →