• Hometalker
  • East Haven, CT


Giant hogweed (Heracleum mantegazzianum) is a Federally listed noxious weed. Its sap, in combination with moisture and sunlight, can cause severe skin and eye irritation, painful blistering, permanent scarring and blindness. Contact between the skin and the sap of this plant occurs either through brushing against the bristles on the stem or breaking the stem or leaves.
hogweed, gardening
hogweed, gardening

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2 questions
  • Tim Gassick
    on Aug 22, 2016

    I am putting together some safety advice for grounds workers. Would it be ok to use the photo of the arm blisters to help get the point over regarding the seriousness of this plant?

    • Luis
      on Sep 2, 2016

      Sure anything that will help them is a plus

  • Ida
    on Oct 17, 2016

    Does this weed grow in Virginia

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2 of 176 comments
  • Luis
    on Jan 16, 2015

    Alicia it is as far down as Maryland and Delaware but not in to the Carolina's yet, lets hope it never get down there

  • Sharon
    on Aug 26, 2016

    In Michigan, the Hazmat Unit is called in to destroy this plant. DO NOT come near it.

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