Lemon is used to treat scurvy, a condition caused by not having enough vitamin C. Lemon is also used for the common cold and flu, swine flu, ringing in the ears, Meniere's disease, and kidney stones.
Lemon trees are fairly easy to keep alive, even if you don’t live in a warm climate. Establish the best environment for them by learning when to bring those potted trees indoors, and give them ample water so they don’t dry out.
Once your tree is 2 to 3 years old, you should be able to harvest anywhere from 10 to 30 lemons every year.
Keep your tree outdoors if you live in a warm, temperate climate.
Grow your lemon tree indoors during the colder months.
Maintain an ideal temperature of 50 to 70 °F (10 to 21 °C)
Make sure your tree gets at least 6 to 8 hours of sunlight every day