Dendrobium hellwigianum is native to Papua New Guinea. These plants are very popular and occur on a large area in the upper parts of the main provinces. They usually grow on horizontal branches of trees in ever misty forests, at altitudes of 1400-2700 m.
Dendrobium hellwigianum also called as Hellwig's Dendrobium (named to honor a German Botanist in New Guinea), Dendrobium coerulescens, Dendrobium cyananthum, Dendrobium geluanum, Dendrobium rhaphiotes, Pedilonum geluanum, Pedilonum hellwigianum, Pedilonum rhaphiotes, is a species of the genus Dendrobium. This species was described by Kraenzlin ex Warburg in 1893.
IDENTIFY DENDROBIUM HELLWIGIANUM
Dendrobium hellwigianum is native to Papua New Guinea. These plants are very popular and occur on a large area in the upper parts of the main provinces. They usually grow on horizontal branches of trees in ever misty forests, at altitudes of 1400-2700 m.
It is a small sized, cool to cold growing epiphyte, which reaching 25 cm in height, with a tufted, sometimes branching, 1-8 cm long stem carrying 1 to 5 apical, fleshy, nearly terete, 2-16 cm long leaves.
Hellwig's Dendrobium blooms on a very short, axillary, 1 to 3 flowered inflorescence that arises from the nodes at or near the apex of older leafless and leafed canes with the very long-lasting flowers held nestled in the leaves occurring most often in the fall but is possible at any time. The flowers open fully and are 1.7-3.2 cm long. There are many forms of colors, among them pink, pink-purple, gray-blue and cream-yellow.
DENDROBIUM HELLWIGIANUM 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 hellwigianum needs a light level of 25000-30000 lux.
Temperature:
The average temperature of the day throughout the year is 22-24 ° C, night 11-13 ° C, giving a daily difference of 10-12 ° C. These plants do not tolerate constant high temperatures, especially warm nights.
Humidity:
In summer and autumn, Hellwig's Dendrobium needs the humidity of 70-75%, and in winter and spring it drops to 65-70%.
Substrate, growing media and repotting:
Dendrobium hellwigianum can be grown mounted on tree ferns or cork, if high humidity is ensured and watering is done at least once a day in summer. When growing in pots, any loose, quickly drying sbstrate is recommended. Repotting can be done at any time as soon as new roots grow.
Watering:
For most of the year, precipitation is moderate to heavy, but during the 3 winter months it is slightly drier. Cultivated plants should be constantly moist, but not soaked in water. Occasional morning fogging will be very beneficial for plants, especially on bright sunny days.
Fertilizer:
It is recommended to apply a 1 / 4-1 / 2 dose of orchid fertilizer weekly throughout the year.
Rest period:
Irrigation and fertilization in winter should be slightly reduced, especially for plants grown in dark, short days at moderate latitudes. Dendrobium hellwigianum should be slightly dried out, but they should never completely dry out.
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