I grow mine in a big container sitting on a dolly so that I can roll it in and out of the house. In the house in front of a patio door that faces south west.
I put it out in the spring and leave it till fall. Then bring it in and out as needed. I have picked 2 ripe lemons so far, and have about five left that are still kinda green.
The plant is only about 2 feet tall. I just put slow realease fertilizer on the soil and work it in. Every so often I water with some liquid fertilizer.