Hi there! I have a problem with my lemon tree. The leves are turning yellow and falling of, and i don't know what to do!! I live in Denmark, where its cold most of the year, so I have had my citrus in the house since I bought it in january. Recently I replantet it into a larger pot, and moved the tree to my greenhouse where the temperature is higher. Since then it has not been well, and after 2 weeks I moved it back inside. I water with rainwater and add citrus fertilizer once a week. I'm not sure, but I think I might have overdone the watering of the tree.... HELP??