Invasive Species


Most (Un)Wanted Invasive Plant of the Month:


Asiatic/Oriental Bittersweet (Celastrus orbiculatus) - December 2022


Black Swallowwort/Dog-strangling Vine (Cynanchum louiseae) - November 2022



Japanese Knotweed (Fallopia japonica) - September 2022


Common Buckthorn (Rhamnus cathartica) and Glossy Buckthorn (Frangula alnus) - August 2022


Japanese Honeysuckle (Lonicera japonica) - July 2022


Multiflora Rose (Rosa multiflora) - June 2022


Autumn Olive (Elaeagnus umbellata) - May 2022


Garlic Mustard (Alliaria petiolata) - April 2022



Japanese Barberry(Berberis thunbergii) - March 2022






Winged Burning Bush (Euonymus alatus) - October 2022