Lisbon lemon trees grow on evergreen trees that are about 10 to 13 feet tall. They are ideal for their tolerance of colder temperatures and can grow in USDA hardiness zones 2 to 11 when moved ...

50 percent humidity The lemon tree grows in semi-tropical regions of USDA hardiness zones 9 to 11, but it can be an excellent indoor plant in cool regions as well. It’s a relatively easy-going ...

However, you still shouldn't plant it outdoors unless you live in USDA zones 8 to 11. My family's tree is placed inside during the colder months since we live in New York and has shed a decent amount ...