Ginkgo trees are a species of broadleaf deciduous trees that have been around for at least 150 million years. The slow-growing trees are well-suited to landscapes because they have no insect or disease pests and because of their interesting, fan-shaped foliage. The leaves turn a golden color in the fall. Ginkgos will reach heights of 70 ft. with spreads of 35 ft., eventually becoming tall shade trees. Make sure male trees (grafted, non-fruiting varieties) are used to avoid trees that produce fruits that have an unpleasant odor. Ginkgo biloba trees are suitable to grow in zones 4 through 9 in well-drained soils.
