Common buckthorn from Europe (Rhamnus cathartica) and glossy/alder buckthorn from East Asia (Frangula alnus syn. Rhamnus frangula) are considered invasive in most states in the US. The designation of “invasive” comes from individual states and it signifies a plant’s ability to crowd out native plants, spread quickly and negatively impact the ecosystem. I see these in many of the properties I visit and a lot of people don’t realize they have it. If you have a small number of these and you don’t w

COMMON BUCKTHORN (RHAMNUS CATHARTICA) is invasive through much of the United States. There is a link in my bio to the department of natural resources page for how to identify and your removal options as well. Here is the link: https://dnr.wisconsin.gov/topic/Invasives/fact/CommonBuckthorn people end up, leaving the shrub along the perimeter of their properties because it provides privacy from their neighbors. What I recommend you do is immediately plant tall, growing native shrubs, like dogwood