Keeping a Christmas tree alive is not difficult, but it does require some care and attention. First, make sure you have the right type of tree for your climate. If you live in a cold climate, choose a tree that is hardy and can withstand low temperatures. Next, make sure to water the tree regularly. Watering should be done daily and the soil should be kept moist but not soggy. Finally, keep the tree away from heat sources such as fireplaces, radiators, or direct sunlight.