Skip to main content

Six new plants, trees added to Minnesota's 'noxious weed' list

The list sets out how the weeds must be controlled to prevent spread.
Screen Shot 2020-01-30 at 1.31.35 PM

The Minnesota Department of Agriculture has announced that six weeds have been added to the state's "noxious weeds" list.

The list is updated three years, and identifies weeds that may be harmful to public health, the environment, roads, crops, livestock or other property.

Weeds are placed into four categories: Prohibited Eradicate, Prohibited Control, Restricted, and Specially Regulated (definitions below).

Here are the new additions to the list:

Japanese honeysuckle (Lonicera japonica), which is categorized as Prohibited Eradicate.

Screen Shot 2020-01-30 at 1.31.08 PM

Bohemian knotweed (Polygonum x bohemicum) which is designated as Prohibited Control.

Screen Shot 2020-01-30 at 1.31.20 PM

Siberian peashrub (Caragana arborescens), which categorized as Restricted (with an exemption for the Green Spires Caragana).

Screen Shot 2020-01-30 at 1.31.28 PM

European alder (Alnus glutinosa), which is Restricted.

Screen Shot 2020-01-30 at 1.31.35 PM

Norway maple (Acer platanoides), which is designated as Specially Regulated

Screen Shot 2020-01-30 at 1.31.42 PM

Winged burning bush (Euonymus alatus), which is Specially Regulated.

Screen Shot 2020-01-30 at 1.31.48 PM

The MDA says Prohibited Eradicate species are considered a serious threat and the state's highest priority noxious weeds. All parts of the plant both above and below ground must be destroyed.

Prohibited control weeds are found in higher populations than Eradicate species, but must be stopped before the weeds mature and spread through seeds, cuttings and other plant parts.

Restricted weeds are widely found in Minnesota, with landowners who find them encouraged to manage them, though can't be forced to under state law.

And Specially Regulated plants are either native or have potential to cause harm in non-managed landscapes. The MDA says special steps must be taken to minimize their harm.

Sign up for our BREAKING NEWS newsletters

There have been three existing weeds on the noxious list that have changed their designation.

Japanese knotweed and giant knotweed are now considered Prohibited Control, having previously been Specially Regulated.

Meanwhile Tree of heaven has been moved from Restricted to Prohibited Eradicate, so much be destroyed if you have one on your property.

Tree of heaven

Next Up

Mock aircraft cabin.

MSP Airport debuts mock aircraft to help ease flying anxiety

The pre-flight experiences cover the TSA screening procedure, exploring a terminal, boarding a plane and meeting a pilot, and preparing for takeoff.

Scripps National Spelling Bee

These Minnesota kids will be competing at National Spelling Bee

The upcoming event in Maryland will be the first fully in-person Scripps National Spelling Bee since 2019.

covid, kids

New data shows how omicron has impacted kids in Minnesota

The new data shows breakthrough data during the omicron period, which began Dec. 19, 2021.

Javen Juan Moreno

Albert Lea shooting suspect arrested after 3 weeks on the run

He is accused of shooting a man in the upper thigh on May 1.


Motorcyclist, 59, killed after losing control on right curve

The Harley Davidson rider was thrown from his bike.

state capitol Minnesota

Minnesota's 2022 legislative session: What's happening?

A list of items agreed upon and yet to reach any bipartisan agreement in the latest legislative session.

water drain

Water main break floods 40-45 homes in St. Louis Park

The city says the rupture happened on Minnetonka Boulevard.

Eli Hart

Charges: 6-year-old Eli Hart shot up to 9 times by his mother

The 28-year-old is facing 2nd-degree murder charges.

dave lee wcco radio

Former WCCO Radio host Dave Lee moves into podcasts

His new podcast, called 'My First Concert,' launched last week.

Tow Boat

Tow boat collides with Mississippi River lock and dam in Alma, WI

The crash remains under investigation by the United States Coast Guard.

unsplash school bus

Police: Man in minivan approached kids, claimed he was former principal

Investigators say children were approached by a man in a white minivan who falsely claimed he'd been a local school principal.


Minnesota's COVID-19 update for Monday, May 23

The latest from the state health department.


coronavirus, covid-2, doctor, masks

Six new coronavirus symptoms added to CDC website

The CDC had previously listed only three symptoms.

Look out for this deadly weed that's blooming in Minnesota

It's spreading quickly in some parts of the state, and can be kill pets and people if it's eaten.

Look out for this deadly weed that's blooming in Minnesota

It's spreading quickly in some parts of the state, and can be kill pets and people if it's eaten.

Screen Shot 2022-04-14 at 3.54.36 PM

List of 2022 spring plant sales in the Twin Cities

This list will be updated as more events are announced.

Poison Hemlock plant

6 dangerous weeds were confirmed in new areas of Minnesota in 2020

One highly poisonous plant and five others known to outcompete native plants have been discovered in nine counties.

Invasive tree pest has now been found in festive wreaths in Minnesota

People are urged to burn or trash the wreaths and boughs after the holidays are over.