Invasive Plant Rules in Parker, CO (2026)
1 verified invasive plant rules for Parker, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Prohibited Species
Parker's Municipal Code bars selling, importing or planting female cottonwood, Boxelder or Siberian Elm trees anywhere in Town, declaring them a public nuisance and menace to health and safety, alongside listed noxious weeds such as leafy spurge and several knapweed species under Chapter 6.01.280.
Cottonwood, Boxelder, Elm Planting Ban in Parker
Heavy RestrictionsParker Municipal Code § 6.01.280(b), (d)
e.It is a plant commonly known as leafy spurge (Euphorbia esula); diffuse knapweed (Centaurea diffusa); Russian knapweed (Centaurea repens); or spotted knapweed (Centaurea maculosa). ... (d)It is unlawful and deemed a nuisance to sell or import into the Town or plant or cause to be planted any female cottonwood trees (Populus spices), Boxelder (Acer negundo), Siberian Elm (Ulmus pumila) or othe...
Looking for Douglas County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Parker city rules.
Invasive Plant Rules in Douglas County →