Weed to get rid of

Asked September 6, 2019, 3:02 PM EDT

Can you please tell me what this weed is, and how to get rid of it?

Montgomery County Maryland weeds plant identification invasive

1 Response

Hi -- Unfortunately, this is a terribly invasive weed called Japanese knotweed. Originally introduced as an ornamental plant, it has become problematic (especially in riparian areas) and difficult to control as it spreads quickly to form dense thickets, pushing out native species. Here is our page about it. Check the resource links, which provide information on how to remove it. https://extension.umd.edu/hgic/topics/japanese-knotweed