Invasive Plant Rules in Sioux City, IA (2026)
1 verified invasive plant rules for Sioux City, Iowa, sourced directly from the municipal code and official government pages.
Verified from official government sources
Prohibited Species
Sioux City bans noxious or invasive species from counting toward required landscaping, tying the ban to Iowa's noxious weed lists.
Sioux City Prohibited Invasive Plants
Some RestrictionsSioux City Municipal Code § 25.05.080, Subsection 25.05.080.1, Items 2-3 (Plant Materials — Allowed/Prohibited Plants)
Plants may be added to the list if it is demonstrated by credible evidence that the species is not subject to: a. The Iowa State Noxious Weed List, U.S. Department of Agriculture; or b. The Iowa Noxious Weeds and the Iowa Weed Law, set out in Chapter 317, Code of Iowa, 1997... 3. Prohibited Plants. Plant species that are subject to those specifically called out in Item 2., above, are not allowe...