Answer: Pyrus calleryana, called the Capital Callery Pear, was patented in 1972. The tree has a strong central leader, strong branching, and a pyramidal form, maturing into a round headed tree 30-35 feet in height. Because the trees have wide angle crotches, they're less susceptible to breakage during freezing rainstorms or from the weight of winter snow. Capital Pear trees are growing in Holland, Canada, Michigan, New York, on the grounds of the Capital in Washington DC, in California, Florida, and Ohio (where they are the street tree of choice). The trees show excellent insect and disease resistance, grow fast, and provide beautiful fall color.
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