Dendrobium linawianum is found only Taiwan and Kwangsi province in southern China. It grows usually on tree trunks in broadleaf forests at elevations of 400 to 1500 meters above sea level.
Dendrobium linawianum also called as Linawi's Dendrobium, Callista linawiana, Dendrobium alboviride, Dendrobium purpureum, Ormostema purpurea, is a species of the genus Dendrobium. This species was described by Heinrich Gustav Reichenbach in 1861.
IDENTIFY DENDROBIUM LINAWIANUM ORCHID PLANT
Dendrobium linawianum is found only Taiwan and Kwangsi province in southern China. It grows usually on tree trunks in broadleaf forests at elevations of 400 to 1500 meters above sea level.
It is a small to medium sized, hot to cool growing epiphyte with clustered, branching, slightly flattened, yellow brown, lustrous, 25-30 cm long, 1-1.5 cm wide stems that are slightly swollen apically and have a pseudobulb-like swelling below carrying a 6 to 7, coriaceous, narrowly elliptical to oblong, 2 ranked, apically unequally emarginate, 4-7 cm long and 2-2.5 cm wide leaves.
Linawi's Dendrobium blooms in the late winter and early spring from the upper nodes, 2 to 3 flowered inflorescence carrying large showy flowers. The flowers are spreading, white, sometimes upper part purplish red. The lip is white with a purplish apex and margins and a crimson spot on each side of the disk.
DENDROBIUM LINAWIANUM ORCHID PLANT 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 linawianum prefer shaded (not dark) conditions with the light level of 18000-30000 lux.
Temperature:
The average temperature of the summer day is 24-25 ° C, night 20 ° C, giving a daily difference of 4-5 ° C. In winter the average day temperature is 11-14 ° C, night 7-10 ° C, giving a daily difference of 4-5 ° C.
Humidity:
From the end of spring to autumn, Linawi's Dendrobium need the humidity of almost 80%, in winter and at the beginning of spring it drops to almost 60%. Too dry air has a negative effect on the development of the plant: its growth is inhibited, and the leaves begin to turn yellow and dry out. The higher temperature, the higher the humidity should be, and the higher the humidity, the more often and longer it is necessary to ventilate the room where the plants are contained, otherwise the probability of rotting and various kinds of fungal diseases.
Substrate, growing media and repotting:
Dendrobium linawianum grows best in pots with staghorn peat as substrate (crocks and charcoal at the bottom of the pot). After potting, keep the plant in a cool, shady place for a few days before placing it in its growing position. Do not overpot. Use the smallest pot that will accommodate your plant.
It does not need frequent repot, therefore, it is desirable to transplant only when it is really necessary, for example, in cases of strong salinization or compaction of the substrate, at its critically high or low pH (the norm is from 5.5 to 6.5) or when the plant grows very strongly and the pot becomes cramped to it (pseudobulbs begin to hang from the edges of the pot). Repotting is best done immediately after flowering when new roots and new growth begin to grow.
Watering:
Although this plant like plenty of applied water in the Summer, they do best in a dry atmosphere. Watering is directly dependent on the temperature of the content, the higher it is, the more often it needs to be watered. When watering, excess water should flow freely from the pot, since stagnation of water both inside the pot and in its pan can very quickly lead to rotting of the roots and the lower part of the plant.
Fertilizer:
It is recommended to use a 1/4-1/2 dose of orchid fertilizer weekly. You can use the balanced fertilizer throughout the year or from spring to mid-summer use high-nitrogen fertilizer, and then until the end of autumn high-phosphoric fertilizer to stimulate flowering.
Rest period:
Dendrobium linawianum need less water in the winter, especially if they grow under the conditions of a dark, short day that occurs at moderate latitudes. They should dry somewhat between waterings, but they should not be dry for a longer period. Frequent morning fogging and rare, economical watering should allow the plant to go through a dry period of rest, while providing it with sufficient humidity. Fertilization should be reduced or eliminated until new growths appear and a more abundant spring watering begins.
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