Blaine, MN Landscaping Rules: Weed Ordinances (2026)

Locally, Blaine treats overgrown vegetation through Chapter 90, Article II (Weeds and Tall Grass). Sec. 90-34 declares turf grasses, pollinator lawns, and weeds taller than eight inches — or that have gone or are about to go to seed — to be a public nuisance and unlawful. Sec. 90-35 requires a written notice to abate before the city steps in to control or eradicate the nuisance and bills the owner. Above the city ordinance sits the Minnesota Noxious Weed Law (Minn. Stat. ch. 18). Sec. 18.78 requires every person owning, occupying, or responsible for land to control all noxious weeds — categorized under Sec. 18.771 as Prohibited (Eradicate or Control), Restricted, or Specially Regulated — at the time and in the manner ordered by a county agricultural inspector or designated employee. Anoka County administers noxious weed enforcement for Blaine properties. Importantly, Blaine's managed natural landscape and native lawn exemptions, and Minn. Stat. Sec. 412.925, all expressly prohibit including any noxious weeds in an approved natural landscape, so a native planting that harbors thistle, knapweed, or other listed species is not protected.