Lemon tree in greenhouse - Cody Wellard

Has anyone tried growing a lemon tree in their greenhouse? If so did you start it from seed. When I was a kid my mom started a couple in our house( in front of a sunny south window) from seed, they grew nicely, but I don't recall them producing fruit.
Cheers!
Cody Wellard:)

To produce fruit you would need an agent of pollination (bees), I believe, not likely to be found indoors.