Question: how much water should you put in a christmas tree?
Answer: The average Christmas tree can use as much as 1 gallon (3.79 liters) of water a day, and you should check the water level daily. The general rule of thumb, according to the National Christmas Tree Association, is that one quart (0.95 liters) of water is required for each inch (2.54 cm) of the trunk's diameter.