Hi there. I am completely new to gardening and plants. Completely new as I have lived in London most my life until recently I moved to Spain with my wife. I have started to enjoy gardening due to its calmness and relaxation. Recently I purchased a orang, lemon and fig tree. As I have always wanted to have these. The fig tree is fine, the lemon tree produced stunning Lemons but the orange tree is starting to look sick. I obviously went to the garden centre to ask for help but unfortunately my spanish is awful so there was a language issue. I was wondering if anyone can help me.