沙漠玫瑰焦尖怎么办？蝴蝶兰黄叶怎么回事？/What to do with the scorched tip of the desert rose?

今日提问：沙漠玫瑰、蝴蝶兰、栀子花、瑞香、火棘/Today's question: Desert rose, phalaenopsis, gardenia, ruixiang, firethorn