Fresh-cut Christmas trees typically last between 4-6 weeks, although it depends on how well you take care of the tree. To prolong the life of your tree, keep it away from direct sunlight and heat sources, and ensure the water reservoir is kept full. Also, be sure to regularly trim the bottom of the tree trunk to allow for better water absorption. By following these simple steps, your fresh-cut Christmas tree will bring joy to your home for many weeks to come!