The Christmas tree in New York City is usually put up in early December, right around the beginning of the holiday season. It's a tradition that's been going on for many years, and it's always a big event. The tree is usually a giant Norway Spruce that's at least 75 feet tall and weighs several tons. It's decorated with thousands of lights and ornaments, and it's always a beautiful sight to behold. The tree is usually put up sometime during the first week of December, and it stays up until the end of January.