Question: why are my poinsettia leaves wilting?
Answer: A Poinsettias wilt when they get too hot and dry. They do best at a draught-free 15-21°C and should keep flowering for 12 weeks. ... Water the poinsettia from the top of the pot, allowing the compost to become completely dry before the next application. But if the leaves start to wilt, water thoroughly with tepid water.