why is my christmas cactus turning yellow

Well, dear, there are many reasons why your Christmas cactus might be turning yellow. It could be due to overwatering, not enough sunlight, or the wrong type of fertilizer. It could also be a sign that the cactus is sick or has some other underlying issue. To help identify the cause, it's best to consult with a local horticulturalist or plant expert for guidance. In the meantime, try reducing the amount of water you're giving the cactus and make sure it's getting enough sunlight.