Rebecca McMackin, a visionary horticulturist, has spent the last decade supervising the transformation of Brooklyn Bridge Park, 85 acres of abandoned shipping piers, into a complex of functioning ecosystems that serve as havens for wildlife and an accessible means for city dwellers to reconnect with nature.  Now she’s moving on to new adventures.  In our conversation she reflects on the accomplishments of Brooklyn Bridge Park’s remarkable horticultural staff, the acute need for such landscapes in a rapidly urbanizing world, and how gardening can influence not only our relationship with the natural world but also with each other.