Botanists classify ginkgo biloba trees as deciduous gymnosperms.
Ginkgo biloba, or maidenhair trees, are one of the oldest living tree species on Earth, according to the University of Maryland Medical Center. These large, long-lived shade trees have medicinal properties.
History
Ginkgo biloba trees have lived on Earth for over 150 million years, according to Ohio State University Horticulture & Crop Science. Scientists believed that the species was extinct until researchers discovered specimens in China during the 18th century. Ginkgo trees are cultivated all over the world.
Identification
Ginkgo biloba trees grow as tall as 120 feet. They have grayish-brown bark and medium green fan-shaped leaves with slits in the middle of the upper leaf blades. Female trees begin bearing unpleasant-smelling, oval-shaped fruits when they are around 20 years old.
Features
Ginkgo biloba trees are hardy in USDA Hardiness zones 3 through 8. They prefer partial shade or full sun and deep, moist, sandy soil. Ginkgo trees have few disease or pest problems. Their leaves contain chemicals that enhance the memory and improve circulation.
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