Dendrobium polyanthum is native to the Himalayan region of northern India, from the Garhwal area near Debra Dum to the Lushai Hills along the border with Myanmar. The distribution area extends further east through Burma, Thailand and Cambodia, Laos and Vietnam. They are also found on the Andaman islands. These plants usually occur in open forests at heights of 1000-1800 m.
Dendrobium polyanthum, also called as The Many Flowered Dendrobium, Callista cretacea, Dendrobium cretaceum, is a species of the genus Dendrobium. This species was described by Nathaniel Wallich ex John Lindley in 1830.
IDENTIFY DENDROBIUM POLYANTHUM
Dendrobium polyanthum is native to the Himalayan region of northern India, from the Garhwal area near Debra Dum to the Lushai Hills along the border with Myanmar. The distribution area extends further east through Burma, Thailand and Cambodia, Laos and Vietnam. They are also found on the Andaman islands. These plants usually occur in open forests at heights of 1000-1800 m.
It is a small sized, warm to cool growing epiphyte, which reaching 15-30 cm in height, with 6 to 12" (15 to 30 cm) long, clustered, pendant, ridged psuedobulbs that are whitish with purple stripes and carry 6, oblong-lanceolate, leathery, deciduous, 5-10 cm long leaves.
The Many Flowered Dendrobium blooms in the late winter and spring from opposite the leaves on nodes of leafed and leafless stems and are 0.5" (1.25 cm) long and carry a single, fragrant, long-lasting flower. The flowers are 3-5 cm in diameter. The flakes of both whorls may be uniformly white to cream-white, often with yellow tops. The almost round lip is light yellow with scarlet lines and a white edge. It is covered with a can, wavy and has curled edges.
DENDROBIUM POLYANTHUM CARE AND CULTURE
Cultural information should only be used as a guide, and should be to be adapted to suit you. Your physical location; where you grow your plants, how much time you have to devote to their care, and many other factors, will need to be taken into account. Only then can you decide on the cultural methods that best suit you and your plants.
Light:
Dendrobium polyanthum needs a light level of 25000-35000 lux.
Temperature:
The average temperature of the summer day is 27-31 ° C, night 21-22 ° C, giving a daily difference of 6-9 ° C. The average temperature of the winter day is 17-19 ° C, the night 9-11 ° C, and the daily difference is 8-9 ° C.
Humidity:
The Many Flowered Dendrobium needs the average humidity of almost 90% in summer, but drops to 55-60% for almost the entire period of winter. In the spring, just before the beginning of the rainy season, the humidity for almost 2 months is only 40%.
Substrate, growing media and repotting:
Due to their overhanging habits, it is recommended to mount Dendrobium polyanthum on tree-fern rootstocks or cork. When cultivating on rootstocks, you need to ensure high humidity and watering in summer at least once a day. If you have to grow them in hanging pots or baskets, these plants should be filled with any loose, quickly drying ground. Repotting can be performed in any period as soon as new roots grow.
Watering:
The Many Flowered Dendrobium should be constantly moist during the period of active growth, but when the new growth reaches maturity in autumn, the amount of water should be gradually reduced.
Fertilizer:
It is recommended to apply a 1/4-1/2 dose of orchid fertilizer weekly. From spring to mid-summer, high nitrogen fertilizer is preferred, and then until the end of autumn, go to the high phosphorus fertilizer.
Rest period:
There are 5-7 month dry season, lasting from autumn until spring, after the rainy season in the natural habitat. In winter, the amount of water should be limited to plants. Dendrobium polyanthum should dry out between waterings, but they can not stay dry for more than a few weeks. Occasional morning fogging during bright sunny days will protect plants from excessive drying. Fertilization should be reduced or eliminated whenever the amount of water is limited.
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