The lifespan of a Christmas tree can vary depending on various factors, such as the species of tree, how well it was cared for, and the local climate. Generally, a well-cared-for Christmas tree can last anywhere from 6 to 12 years before it starts to lose its freshness and beauty. However, it is important to note that the lifespan of a Christmas tree also depends on how it was stored, handled, and cared for after it was harvested. Proper storage and maintenance can significantly extend the life of a Christmas tree.