Answer: For the mimosa trees as we know them, the genus is Albizia, the species is julibrissin. There might also be a cultivar name such as "Boubri" or "Rosea" following that, if it is a named selection. Selections are made based on special characteristics such as overall outline of the tree or flower coloring or some other notable feature that sets it apart. These trees are hardy only into zone 6. Unfortunately I do not know of a way to have one of these trees survive in upstate New York, it is just too cold where you live. I'm sorry.
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