Hi, I am also having trouble with my lemon tree after bringing it inside. It is loosing nice green leaves at a fast rate. I did not repot, I did feed with Miracle Grow. Last year the tree was about 3ft. tall and produced 9 lemons. Over the summer it grew about 2 more ft. could hardly get it in the door. It has 8 small lemons about golf ball size and 4 about acorn size and still blooming. I am afraid the lemons will fall off before they ripen this year. What is happening? And will I loose the lemons before I can help it.
I understand this to be a natural response to a change in environment. Mine did the same thing. I have since added a 45W HO light and aluminum paper enclosure and 3wks later has done its second budding. (First one was a failure because of lack of light and door draft stress). You will also probably..naturally loose lemons on first indoor budding.