Place cuttings in bright, but not direct, light. Care of these plants is the same as care for the parent plant. The parent plant and all rooted cuttings will bloom at the same time. The thicker cuttings will produce larger blooms. Make as many cuttings as desired until late August, but remember, only strong stems produce strong plants.
Ventilation is important, but keep the plant away from drafts.
Drafts, as well as low temperatures, waterlogged soil, and drought, can cause the lower leaves of the poinsettia to yellow and fall. Night temperatures of 60 to 65 F and day temperatures up to 75 F are recommended. If the night temperature is too high or too low, the plant is likely to flower later. This means that the plant must be in total darkness for about 14 hours out of every day for a four-week period to form flower buds. Beginning late September or early October, make certain the poinsettia receives no artificial light after nightfall.