Ginkgo biloba ‘Mariken’ is a compact, dwarf, semi-pendulous selection of Maidenhair tree that’s exceptional when grafted high on its understock. This male clone has thick young branchlets that are densely packed with succulent green leaves. After 10 years, a mature plant will become a flattened globe, 20 to 24 inches (50 – 60 cm) wide and half as tall, suggesting an annual growth rate of 2 inches (5 cm).