Japanese Knotweed – Identified

« Back to Name that Plant

Date Photo Taken: 05/07/2019
Location: Mattituck, Long Island, NY
Posted By: Suzanne


Growing at the woods’ edge on Long Island, NY. My sister says it will get a white, elongated cluster of flowers. About 4 feet tall when photographed. I was thinking it might be Lizard’s Tail (saururus cernuus), but it is not a swampy area. It does seem to spread underground. She wants to know if it is invasive and should it be destroyed? The patch does get bigger each year!


  1. Walter Reeves The Georgia Gardener says:

    Japanese knotweed
    a bad bad weed

    May 17th, 2019 at 5:44 pm
  2. Suzanne Green Thumb says:

    Thank you for your response. So much for hoping it was not an invasive! Oh well. I’ve informed my sister that she will have to continue the fight against this.

    May 31st, 2019 at 7:39 pm

Leave a Reply