The sweet bay magnolias in Magnolia Walk are unusual because of their number and size this far north (they are a southern species).
Mr. Lewis planted them close to the house so that their sweet fragrance would drift into the manor windows in June. Note the many unusual shrubs on each side, including scented viburnums, honeysuckles and fragrant mahonias.
East of the walk is an unusual columnar form of the sugar maple, the Sentry maple (Acer saccharum monumentale).
And to the west is a Kentucky coffee tree. Its bark and very thick branches are interesting additions to the winter landscape.
Also here are the Japanese pagoda tree (Sophora japonica), which blooms in August, and the fall-blooming golden-rain tree (Koelreuteria paniculata apiculata).