Poinsettia care involves a lot of sun and warmth in order to grow. If you are in a climate where it cannot grow outdoors and you need to grow it indoors, your best bet is to place it in a window that gets a lot of sun. Filtered sun is better than direct sun.
To maintain good Poinsettia plant care they need to be in a room where temperatures are at least 65-70 degrees during the day, with a 10 degree decrease in temperature at night.
This flower does go through a period of dormancy, but will grow again with proper care. They go into dormancy once they have reached full bloom. When the color on the petals begins to fade away, stop fertilizing the plant and water it only enough so that it doesn’t dry out. You also have to move the plant to a cooler spot that gets a little bit of sun.
In spring when you see new growth coming in, cut back stems and repot it in a new pot. Then you can put it back in the spot where it used to grow and you can water and fertilize the plant again.
During the growing period, you want to make sure the soil stays moist. Don’t soak the plant, just keep it evenly moist. In the summer a fall months, you also want to fertilize the plant about once a week with an all-purpose fertilizer.