Clementine tree fruiting then falling off
My clementine tree is going on 3 years old. It has never produced fruit. Last year and this year it has blossomed beautifully, then produced very tiny fruit about the size of a pencil eraser. They stay green for a couple weeks, then die and all drop off. I can't figure out why this is happening. the tree is a dwarf and is in a pot. Gets lots of sun, and water about once a week. Any ideas?