Colin McCallum-Cook is a horticulturalist at the Arnold Arboretum, where he cares for the oak, viburnum, juniper, hornbeam, mountain laurel, and corkwood collections. He is also responsible for managing some of the Arboretum’s wilder, naturalized landscapes such as Bussey Brook, the Rockery, and the Hunnewell Meadow.Colin has a long experience in stewarding natural and anthropogenic […]