There are many different types of Christmas trees that can last for different amounts of time, depending on the variety and how they are cared for. Some of the most long-lasting types of Christmas trees include the Douglas Fir, the Blue Spruce, and the White Pine. These trees can last up to 20 years or more if they are properly cared for and maintained. However, no matter what type of tree you choose, it's important to make sure you give it enough water and light and keep it away from direct heat sources, such as fireplaces or heaters.