By Carolyn Bishop Asian bittersweet (Celastrus orbiculatus), also known as Oriental bittersweet, is one of the most beautiful and problematic invasive plant species in our area. In the past, bittersweet was commonly sold in wreaths and floral arrangements, which were especially popular in the fall due to bittersweet’s brilliant yellow-shelled orange berries. Little did we know we were helping to spread a very invasive, damaging, non-native plant. Asian bittersweet was brought to the United States in the 1860s as an ornamental and for erosion control. Now it is found from Ontario and Quebec south through the Great Lakes states, from [READ MORE]