Ginkgo biloba 'Princeton Sentry'
Conestoga Pines Park, 161 Pitney Road, Lancaster PA
This narrow, columnar cultivar is always male and thus fruitless (G. biloba is dioecious, with separate male and female trees).
Sentry matures at 40-50 feet (in con- trast, the species can reach 100 feet), and its spread only reaches 15-20 feet (compared to the 108-foot spread of the co-champion ginkgo in Lancaster Cemetery). Sentry thus makes an ex- cellent street tree where vertical over- head space is limited.
This amazing species' leaves turn golden yellow in autumn and then may persist for several weeks before drop- ping quickly together to form a golden carpet around the trunk.