Coelogyne pulverula occurs in Borneo, Sumatra, Java, Malaysia and Thailand. It grows epiphytic or lithophyte in lowland rainforests and lower montane forests on trunks and major branches often near or over streams and rivers or on large rocks and cliff faces at an altitude of 250 to 1900 meters above sea level...
Coelogyne pulverula also called as The Powdery Flower Coelogyne, Coelogyne dayana, Coelogyne dayana, Pleione dayana, is a species of the genus Coelogyne. This species was described by Johannes Elias Teijsmann & Simon Binnendijk in 1862.
IDENTIFY COELOGYNE PULVERULA ORCHID PLANT
Coelogyne pulverula occurs in Borneo, Sumatra, Java, Malaysia and Thailand. It grows epiphytic or lithophyte in lowland rainforests and lower montane forests on trunks and major branches often near or over streams and rivers or on large rocks and cliff faces at an altitude of 250 to 1900 meters above sea level.
It is a large, hot to cool growing epiphyte or lithophyte with close set, spindle to long ovoid, shallowly grooved, 7 to 25 cm in length and 2 to 4 cm in width pseudobulbs and carrying 2, apical, rather stiff, oblanceolate to long elliptic, plicate, 7 to 9 nerved, acute, gradually narrowing below into the elongate, petiolate base, 25-70 cm in length and 4-11 cm in width leaves.
The proteranthous to synanthous inflorescence is pendulous, enveloped basally by imbricate bracts and can reach more than 1 meter and has a fractiflex rachis with up to 60 flowers, spaced, 2.5 cm apart that open simultaneously, and blooms in the spring. The flowers are fragrant (very light), color from greenish to ocher with a small amount of white on the lip, about 4 cm in diameter. Tepals long-lanceolate, with pointed tips, 3 cm in length and 1 cm in width, often have darker veins, petals somewhat narrower. Lip is triple, its upper parts are large enough, rounded, slightly curved back, with white streaks with brown veins, and the anterior part rounded, pointed at the tip, bent backward at the edge, almost double to the tip, with a white, brownish edge , the total size of the lip is 2-3 cm long. The column is slightly arched.
COELOGYNE PULVERULA 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:
Coelogyne pulverula loves bright sunlight and is able to tolerate direct morning and evening sunshine (25000-35000 lux), however, in hot summer noon on windows of southern orientation and in the afternoon on western windows it should be protected from direct sunlight, (for example, on a table near a window) or in the shadow of other plants, otherwise the orchid leaves can get sunburn, and the plant itself is severely stressed by regular overheating (yellowing and premature falling of the leaves). Bright sunlight is one of the main prerequisites for the flowering of orchids of this species, and if the lighting is insufficient (especially during the development of new shoots), then the orchid will simply not bloom, as new shoots grow underdeveloped, i.e. incapable of flowering. During the whole year, the duration of the light day should be at least 10 hours, ideally 16 hours.
Temperature:
This type of orchid refers to a moderately warm temperature regime, and throughout the year the plants are recommended to contain under the following conditions: Day temperature is 18-25 ° C (maximum 25 ° C); Night temperature is not below 12 ° C. For the successful cultivation at home, it is necessary that the night temperature of the contents always be at least 4-8 ° C lower than the daytime temperature.
Humidity:
In natural habitats, the relative humidity of the air rarely falls below 70%. In conditions of high humidity, it is necessary to regularly ventilate the room where the plants are kept, since wet, stale air is an ideal medium for the mass reproduction of various fungal and bacterial diseases.
Substrate, growing media and repotting:
Coelogyne pulverula is usually grow in hanging pots, baskets or with a bare root system - placed on blocks. The substrate must be both very breathable and moisture-consuming at the same time, so the mixture of the bark of coniferous trees with charcoal, roots of ferns, humus and sphagnum moss (up to 50%) is best in its quality. When growing orchids on blocks to prevent rapid drying of the root system of the plant, it is recommended to make a small interlayer of moss between it and the block. Above the roots, you can also put live or dry sphagnum.
This species reacts negatively enough to the repotting and may subsequently miss 2-3 flowering, i.e. to form pseudobulbs that do not give flowers, so transplanting an orchid is desirable only when it is really necessary, for example, in cases of severe salinization or condensation of the substrate, at its critically high or low pH (a rate of 5.5 to 6.5) when the plant grows very much and the pot will become too small for it (pseudobulbs will begin to hang from the edges of the pot). The best time to transplant is the period immediately after the flowering of the plant.
Watering:
Watering this kind of orchids directly depends on the overall temperature of the content, the higher it is, the more often and abundant it is necessary to water. Plants growing on blocks, it is desirable to water daily in the morning, so that by evening their roots could dry out relatively well. When watering orchids in pots, it is necessary to remember that excess water during watering should flow freely out of the pot, as the stagnation of water both inside the pot and in its pallet can very quickly lead to rotting of the roots and the lower part of the plant. The substrate between the irrigations should dry relatively well, but do not dry out completely, i.e. is always in a slightly moistened, but not wet state.
Fertilizer:
During the new growth period, this type of orchids is fertilized every 1-2 weeks in the usual fertilizer concentration indicated on the package. In addition to root top dressing, it is also recommended to produce a foliar dressing when the outer part of the plant is sprayed with a very diluted fertilizer. It is best to feed the orchid, alternating both these methods. The best fertilizer is fertilizer containing nitrogen, phosphorus and potassium in equal parts, for example, NPK = 3-3-3 or 8-8-8. If you do not have such a fertilizer, then at the beginning of the growing season (the emergence of new shoots), feed the orchid fertilizer with a high content of phosphorus, and after flowering - fertilizer with a higher nitrogen content.
Rest period:
Coelogyne pulverula does not needs any period of rest: neither for stimulation of flowering, nor in winter. The refusal of the flowering of the orchid can be caused by the too hot content of the plant (especially at the very beginning of the development of new shoots), the absence of sufficient differences between night and day temperatures, poor lighting or the general stress state of the plant (poor root system).
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