I am not a Citrus guy , actually I removed most of them for fear of HLB . Now my beautiful Kaffir 3 meters tall lost all his leaves , the few Citrus I kept are doing great , all growing in the same area . The Kaffir has never flowered or fruited , other Citrus much younger have fruit now . Some thing in the soil maybe ? Or since we had an extremely long dry season did I water too much ?