Yucca Filifera is also named St-Peter's palm, Dragon Yucca, Adam?s Needle, Spanish bayonet, Roman candle, or Needle palm. This tree belongs to the Agavaceae family and is native to Mexico. Multi-headed Dragon Yucca filifera is one of the largest growing yuccas, reaching heights of 30 ft, with a trunk diameter up to 5' across. This tree-like species has 20" diameter spherical heads composed of numerous sword-shaped leaves at the ends of arm-like branches giving the plant a fairy-tale quality. The massive trunks are tall and solitary at first and start branching with age. This Yucca has rigid leaves that form a compact, rounded crown. It is in leaf all year, and its numerous green leaves are about 1" wide and up to 2" long, arising from the base, sharp pointed on ends, and margins with thread-like curly filaments. The leaves are erect when they are young but they become arched when they get older. The Dragon Yucca blooms from July to August. The flower spikes are about 4` in length and strongly pendulous, with hanging nearly white flowers of 1-2" long. The flowers are hermaphrodite (have both male and female organs) and have to be pollinated by hand. Hardiness zones: 7-10 (-15C/ 5F, 1C/35F) in winter. The Yucca Filifera requires any well drained soils. It will tolerate light to moderate freezes and is best suited to warm temperate/subtropical areas.