On a sunny Saturday morning in October 2011 the students of the Environmental Residential College, led by professors Chris Daniels, Steve Jordan  and Mark Spiro, dug and removed several large patches of Japanese knotweed (Fallopia japonica) and several young Norway maple trees (Acer platanoides)  and planted 20 native trees - 10 eastern redbud (Cercis canadensis) and 10 flowering dogwood (Cornus florida).  Japanese knotweed is a particularly aggressive weed that grows back from even the smallest piece of root remaining in the soil. Continued removal of these plants will be required in the future.