Standard beeches are best planted in lawn areas or behind sidewalks because it needs some room to grow. We have seen upright varieties as successful street trees in the Western Prom area. Many interesting cultivars exist, including 'Riversi' that has purple leaves, and 'Aspenifolia' that has fern leaves. Green and White Ash are large, fast growing shade trees. The Green Ash is more common and has bright yellow fall foliage.
Ginkgos are slow growing after transplanting, but grow well in difficult sites.
Trees planted on Danforth Street in 1970's are doing great. Best used as a lawn or street tree. Ginkgos also may be hard to find. Maine's biggest Ginkgo is on Ashmont Street at Deering Avenue. Tulip shaped leaves with an interesting flower blooming at the top of the tree.