Milford Buckner, left with red cap, hits a button to turn on the lights during the third-annual Tree Lightning Ceremony in the Bellagio Conservatory The annual holiday display at the Bellagio's Conservatory & Botanical Gardens is a breathtaking winter wonderland with its 42-foot-tall tree and decorations made with 28,000 poinsettias all lit up by thousands of twinkling lights. The majestic holiday tree is decorated with 7,000 warm white LED lights and 2,500 ornaments.