Answer: A Lisbon lemon tree would not survive the winter outside in New York state, so you would have to maintain it as a container tree. It could go outside each summer but must be brought indoors each fall.
It should do fine in a container for at least a while, but for long term container growth it is better if it is grafted onto a dwarfing rootstock such as Flying Dragon. Citrus can be pruned to keep them small, but the dwarfing rootstock is necessary for success as a container plant.
Here is some general information on growing container citrus you may find helpful.
Enjoy your tree!
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