It is possible to root citrus if you are patient. I did this about 25 years ago when I lived near Charleston,SC. This is how I had success with semi-hardwood cuttings. I cut the top off of a large 2 or 3 liter plastic soda bottle about halfway down. I made sure everything was absolutely sterile. I sterilized my peat/sand potting material in the oven and used boiled water to re-moisten it just enough. Nowadays bottled drinking water is everywhere so I would just use that. I scuffed the bottom inch of the cutting slightly. I sprayed the upper half of my cutting which had 3 leaves with Wilt Pruf. I dipped in rooting hormone, placed in bottle and then taped bottle back with duct tape. Leaves were not touching the sides. Finally, I screwed the cap back on. I kept it on a sunny North facing windowsill indoors. I never added water after that. Then it took a full year before the plant was ready to transplant. I successfully rooted Owari Satsuma which I think is rarely if ever rooted from cuttings. Same technique has been successful for rooting almost anything I have attempted. The key is the rooting medium must be BARELY damp, too much moisture and it will rot. A fungicide dip prior to setting the cutting might be beneficial as well. If you have a lot of condensation remove the top for a day or two, you want just the barest hint of condensation to form on a sunny day. A plastic bottle makes an ideal greenhouse.