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Home > Plants, Pests & Pest Control > Pest Management > Noxious & Invasive Weed Program > Weed of the Month

Weed of the Month Series


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!


2017 Weed of the Month Series

  1. January - Japanese Barberry and Ticks
  2. February - The Cut-Flower Pathway
  3. March - Baby's Breath
  4. April - Crown Vetch
  5. May - Tree of Heaven
  6. June - Porcelain Berry

2016 Weed of the Month Series

  1. January - Garlic Mustard
  2. February - Poisonous Ornamental Plants
  3. March - Edible Plants that have Poisonous Parts
  4. April - Prescribed Burns as Part of an Integrated Management Strategy
  5. May - Multiflora Rose
  6. June - Glossy Buckthorn
  7. July - Strategic Invasive Plant Management
  8. August 2016 - Poison Hemlock
  9. September 2016 - Giant Knotweed
  10. November 2016 - Palmer Amaranth
  11. December 2016 - Japanese Barberry

2015 Weed of the Month Series

  1. January - Yellow Starthistle
  2. February - Narrowleaf Bittercress
  3. March - Leafy Spurge
  4. April - Thistles
  5. May - Wild Parsnip
  6. June - Spotted Knapweed
  7. July - Purple Loosestrife
  8. August - Poison Ivy
  9. September - Common Tansy
  10. October - Common Buckthorn
  11. November - Non-native Phragmites
  12. December - Japanese Knotweed

2014 Weed of the Month Series

  1. April - Finding and Reporting Minnesota’s Noxious Weeds
  2. May - Grecian Foxglove
  3. June - Dalmatian Toadflax
  4. July - Japanese Hops
  5. August - Cutleaf Teasel
  6. September - Oriental Bittersweet
  7. October - Giant Hogweed
  8. November - Black Swallow-wort
  9. December - Brown, Meadow, and Diffuse Knapweeds

MDA Contact

MDA Noxious Weed Program