It's difficult to say exactly how long a fake Christmas tree will last, as it depends on a variety of factors. However, with proper care and maintenance, a fake Christmas tree can last for many years. It's important to store it properly, making sure it's kept away from heat and moisture, and to clean it regularly to prevent dust and debris buildup. Additionally, it's a good idea to inspect it before each use to check for any signs of wear or damage, and to replace any parts that are broken or worn out.