Real Christmas trees can last for weeks or even months, depending on how well they're cared for. The key to keeping a real Christmas tree fresh and fragrant is to keep it well-hydrated by regularly watering it. Make sure to place the tree in a location away from heat sources, such as fireplaces or vents, and keep it away from direct sunlight. And don't forget to keep an eye on the water level in the tree stand to prevent the tree from drying out. With proper care, a real Christmas tree can last through the entire holiday season and even beyond.