The Windmill Palm Tree, scientific name Trachycarpus fortune, is one of the most popular palms because of its cold hardiness that makes is perfect for landscapes in USDA zones 7-11. The Windmill Palm is also known as Chusan Palm and Chinese Windmill Palm.
Trachycarpus fortune has a slender single trunk that is around 8 to 10 inches in diameter. The trunk is covered with a loose mat of coarse gray or brown fiber and is a bit narrower at the base. The Windmill Palm can grow up to 25-30ft tall and 8-10 ft wide. The Windmill Palm has palmate, sword-like leaves that are 4 ft in diameter. They range from dark green to yellow-green in color that seem almost silvery on the underside. Leaves grow upward more so than outward. The petiole is about 1 ½ feet long and armed with sharp thorns.
The Windmill Palm is dioecious, male and female flowers are borne on separate plants. In the early summer Windmill Palm produces large plumes of yellow flowers on the male plants and greenish on the female plants. Flowers are held on 3ft long branched stalks. Later flowers of the female plants transform into bluish-black fruits that are about 1/2 in (1.3 cm) in diameter. The fruits get ripe in the mid fall. The Windmill Palm fruit is not edible.
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