Phalaenopsis giant (genus Phalaenopsis gigantea) - monopodialnoe tryavyanistoe epiphytic plant family Orchidaceae, or Yatryshnikovye (Orchidaceae).
Kind of not having established a Russian names in Russian sources commonly used scientific name Phalaenopsis gigantea.
The largest member of the genus Phalaenopsis. Stem shortened, fully hidden bases of the leaves.
Roots fleshy, smooth. Leaves are very large, pendulous, leathery, shiny on both sides, rounded, up to 1 meter in width and 40 cm total number of leaves from 2 to 7.
Hanging floral stem, curved, sometimes branching, thin, long may exceed 40 cm, bears 10-30 flowers. Adult plant with several peduncles form more than a hundred colors simultaneously.
Flowers fleshy, 3,75-7 cm in diameter, with faint citrus aroma, rounded shape, with equal petaliyami and sepaliyami from cream to yellow and greenish-yellow spotted with protruding reddish-brown spots or strokes. Flowers are many variations of detail painting.
Area, environmental features
Borneo. It grows high in the crowns of trees in tropical forests at an altitude of 0 to 400 meters above sea level.
In the field of natural vegetation there is little seasonal temperature fluctuations. Day 30 ° C at night around 23 ° C.
Relative humidity 80-86%. Dry season there. During the year, falling roughly equal amount of precipitation from 200 to 400 mm per month. In areas of natural vegetation almost completely destroyed by man.
New Phalaenopsis giant was discovered in 1897 by botanist Nayvenhyusom. Defining plant as Phalaenopsis amabilis Nayvenhyus took him to the Botanical Garden City Byutenzorg (new name Bogor). The plant bloomed only in 1909 and was described by the director of the Botanical Garden J. Smith.
Shortly after the description of a single instance of Phal. gigantea died. Only in 1937, when construction of the road was found a second instance of a giant phalaenopsis leaves to 90 cm in length and 40 cm in width.
At present, in places of natural vegetation Phal. gigantea, on the slopes Batukelau, Kumbumesaay and Lumbis and along the banks of the river Sembakung roach, plants can not be found.
The name of this Phalaenopsis got out of the huge leaves, exceeding 60 cm in length.
One of the most spectacular, but difficult in the culture of phalaenopsis. Permanent exhibitions winner of orchids. Repeatedly described in literature winner of 1993 International Orchid Show in Santa Barbara Phal. gigantea 'Laurie Weltz' with seven stems had 139 flowers and 81 of the bud.
The largest flowers were registered with the clone 'Valle Giant'. Diameter of 6.5 cm produced 36 evaluation parameters exhibit plants.
There is growing this species is very slow to bloom 6-12 years, under ideal conditions and with the competent agricultural technology in vozoaste 4-5 years.
Temperature Group - warm. Tolerates a wide range of temperatures. The most optimum temperature of the contents of the giant 22-30 ° C. For the normal flowering optional temperature drop day / night at 5-8 ° C. Requirements for coverage: 800-1000 FC, 8608-10760 lx. Relative humidity of 60-80%.
Watering as drying the substrate. Overabundance of water should be avoided. Water the plants should be in the morning to rest on the leaves of water in the evening completely dry.
Fertilize plants heavily diluted fertilizer for orchids. With the active circulation of air in the room, the probability of disease is greatly reduced. Pronounced period of rest does not matter.
Planting in a pot, basket or epiphytes on the block. As a substrate using a crude mixture of pieces of pine bark medium-sized pumice or expanded clay, birch charcoal and a small amount of peat moss. Transplanted every 2-3 years after the end of flowering, when the substrate begins to decompose.
Sensitive to damage the roots, so plant it is desirable to turn over less often. Substrate should choose a way that it can easily fall out of the roots. In the case of the death of several plant roots for long stays in its development.
After transplantation should not water the plants a few days. Planting should be carried out in such a way that all leaves are hung, as This will protect the growing point of the delay of moisture after watering.
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