Watching the flowers bloom on my kitchen window ledge. One Christmas cactus has flowered abd faded. One is in full bloom and the third is  just coming into flower. I also have one which has tiny buds on it. It’s interesting how they have flowered in progression. I don’t know if some have had more water than others. But they must be healthy. Easy to look after. I put a bit that broke off in a mug of water and it has now grown roots.