Mums orchid

My lack of green fingers means I have only managed to get this orchid to flower three times since I have had it (around 10 years!) The first time, I enthusiastically overwatered it in excitement and all the buds fell off but the second time they lasted a couple of weeks. This time, I have watched the stem grow for the last two months and have not watered it in about three months and all seems to be going well so far!