Ginkgo Tree Facts
The ginkgo tree, or Ginkgo biloba, is sometimes known as the maidenhair tree. It is used as a shade or ornamental tree that grows in USDA hardiness zones three through eight. The ginkgo tree is a hardy tree and will thrive in clay, loam, acidic and alkaline soils.
Function
While this tree can be used to provide shade in landscaping projects, the leaves and nuts are frequently used in herbal supplements. An extract is made from the leaves of the ginkgo tree and is then drunk to strengthen memory and concentration. It has also been used in pill, tincture or tea form to treat the following problems: tinnitus, fatigue, asthma, Alzheimer's disease, leg pain, multiple sclerosis, cancer, bronchitis, coughs and reproductive tract problems. The World Health Organization has approved the use of ginkgo leaves to treat Raynaud's Disease.
Geography
According to the Arbor Day Foundation, the ginkgo tree is a living fossil. The Chinese rediscovered it in 1691 and brought it to the United States in the 1700's. Today, the ginkgo tree may be found growing in many areas throughout the world. It can survive freezing temperatures, drought conditions and heavy rainfall. However, it doesn't grow well in arid climates.
Identification
To identify a ginkgo tree, look for fan-shaped leaves, which turn a golden yellow color in the fall. While it does produce flowers, they are so small as to be unnoticeable to the casual observer. The female tree produces a small, tan-colored fruit that has an objectionable odor. Most horticulturalists and landscapers avoid planting the female ginkgo tree for this reason.
Size
The ginkgo tree can live as long as 3,000 years. The tree has a medium growth rate, which is approximately 13 to 24 inches per year until it reaches its full height. Ginkgo trees can attain a height of 50 feet or more. A full-grown ginkgo tree may have a spread of 25 to 35 feet.
Benefits
This tree can be grown in a wide variety of areas and may be planted along streets because it is resistant to salt damage. In addition, it can also be made into a bonsai tree. The ginkgo is also disease and pest resistant, making it one of the easiest trees to care for. Gardeners and landscapers also enjoy using these trees because they require very little pruning, if any. They naturally grow in a pyramidal shape.
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