Dendrobium unicum is native to Northern Thailand, Laos and Vietnam. In Thailand, they were encountered near Omkoi at an altitude of 800-1000 m, and near Loei at an altitude of 1400-1550 m...
Dendrobium unicum also called as The Unique Dendrobium, is a species of the genus Dendrobium. This species was described by Gunnar Seidenfaden in 1970.
IDENTIFY DENDROBIUM UNICUM
Dendrobium unicum is native to Northern Thailand, Laos and Vietnam. In Thailand, they were encountered near Omkoi at an altitude of 800-1000 m, and near Loei at an altitude of 1400-1550 m. In Laos, it is found in Vientiane and Sedone. They grow on rocks or shrubs, in areas covered with low bushy vegetation.
It is a miniature sized, cool to warm species, which reaching 7-9 cm in height, with clustered, small, 7-9 cm long stems carrying 2 to 3, apical, narrow, persistent, 5-7 cm long leaves.
The Unique Dendrobium blooms in the later spring and early summer on axillary, short, raceme that arises from near and at the apex of leafed and leafless canes with up to 4 fragrant flowers. The flowers are 3.5-5.0 cm in diameter. They have a strange shape, long, slender petals of both whorls and deep orange or bright red-orange color. They can be completely open or be so strongly twisted that they seem tangled. The large lip, directed upwards, has the shape of a tube and is strongly innervated. It protrudes forward and can be white, cream or beige. It is slightly serrated along the edges.
DENDROBIUM UNICUM 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 unicum needs a light level of 25000-40000 lux. The plants need for shading from spring to autumn, but the light should be as much as they can bear without burning the leaves. Strong air movement should be ensured all the time.
Temperature:
It is a thermophilic plant. In summer the average day temperature is 27-28 ° C, night 20 ° C, which gives a daily difference of 7-8 ° C. In spring, the average day temperature is 31-34 ° C, at night 14-21 ° C, with a daily amplitude of 10-19 ° C. The average winter temperature is 26-30 ° C during the day and 10-12 ° C at night, giving a daily difference of 15-19 ° C.
Humidity:
The Unique Dendrobium need the humidity of 80-85% in summer and early autumn, it can fall to almost 55% during the 2 winter months.
Substrate, growing media and repotting:
Dendrobium unicum can be mounted to pieces of tree ferns or cork, with high humidity ensured and daily watering during the summer. If the plants are grown in pots, any loose, fast-drying substrate can be used. Repotting is best done in early spring, when the growth of new roots begins.
Watering:
For 6 months from spring to early autumn, the rainfall is abundant, but for the remaining 4-5 months in winter and at the beginning of spring are small. During active growth, the cultivated plants should be kept constantly in moisture, while when new growths reach maturity at the beginning of autumn, the amount of water should be gradually reduced.
Fertilizer:
The plants should be fertilized every week 1/4-1/2 of the recommended dose of fertilizer for orchids. A fertilizer with a high nitrogen content is beneficial from spring to mid-summer, and a fertilizer richer in phosphorus should be used in late summer and autumn.
Rest period:
For most of 5-6 months from autumn until spring, the Dendrobium unicum should dry a little before the next watering, but they can not stay dry for a longer period. For a period of 1-2 months at the end of winter, the amount of water should be reduced more and the plants should be completely dry. The plants also should not be fertilized during this period.
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