Black locust is a member of the legume family; it can “fix nitrogen” in the soil. It is native to the Appalachian Mountains, from Pennsylvania to Alabama. However, in the last century, it has spread ...
ST. PAUL — October's Weed of the Month is a tree called black locust (Robinia pseudoacacia). Black locust is native to North America but not native to Minnesota. It has been widely planted as an ...