To make a Christmas tree wreath, you will need a circle of wire or a pre-made wire wreath frame, greenery of your choice (such as holly, pine, or fir branches), and decorations like bows, bells, or ornaments. First, cut the greenery into pieces that are about 4-6 inches long. Then, wrap the greenery around the wire frame, overlapping each piece so that it covers the frame completely. Once the frame is covered, add your decorations and secure them in place. Finally, hang your wreath on your door or wall to enjoy!