A real Christmas tree can last up to 12 weeks with proper care. Some tips to keep your tree fresh and vibrant include watering it daily, making sure it's in a cool, shady place, and trimming the bottom inch off the trunk each week. Also, make sure to keep your tree away from heat sources such as fireplaces and radiators, as this will dry out the needles faster. By following these simple steps, your Christmas tree will be a beautiful and festive addition to your home for weeks to come.