The Weed of the Month is a series of articles about Minnesota noxious weeds. It reaches a broad audience to educate Minnesotans about injurious plants. The articles are picked up by publications throughout the state and are archived at this website. Material in this column is not copyrighted and reproduction of material is encouraged. However, credit the Minnesota Department of Agriculture if you do use material from these columns. Check back regularly for updates and new articles!

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2024 Weed of the Month Series

May - A Decade in Bloom

April - Annual Treatment Cycle for Invasive Plant Species

March - Biological Control of Purple Loosestrife in Minnesota

February - 2023 New County Finds of Prohibited Eradicate List Noxious Weeds

January - Resources and Invasive Plant Management 

2023 Weed of the Month Series

December - Saltcedar

November - Amur corktree

October - Amur silvergrass

September - Tatarian maple

August - non-native Phragmites

July - Pale Swallow-wort

June - Tree of Heaven

May - Johnsongrass

April - Lesser Celandine

March - 2022 New County Finds of Prohibited Eradicate Noxious Weeds

February - Updates to the Noxious Weed List

January - Common Barberry

2022 Weed of the Month Series

December - Pigweeds

November - Plumeless Thistle

October - Non-native Bush Honeysuckles

September - Multiflora Rose

August - Porcelain Berry

July - MDA Report a Pest System and Palmer Amaranth

June - Teasel

May - European Alder

April - Urban Roots Youth Conservation Program is Restoring Degraded Habitat in St. Paul Parks

February - 2021 New County Finds of Prohibited Eradicate Noxious Weeds

January - Assessing the Risk of Invasive Plants in Minnesota

2021 Weed of the Month Series

December - Noxious Weed Grant Achievements

October - Red Hailstone

September - Palmer Amaranth Is In My Field, Now What?

July - Pale Swallow-wort

June - Vining Milkweeds and Rough Potato

May - Gardening with Non-invasive Plants

April - Habitat Restoration

March - Change to the 2021 Noxious Weed List

February - Tactical Plan for Invasive Plant Prioritization

January - What's In My Soil?