Zelenkoa onusta is native to Ecuador and Peru. The plants occur on the coastal lowlands of western Ecuador and north-west Peru, where precipitation is sporadic, but the air is characterized by high humidity...
Zelenkoa onusta also called as The Luxurious Zelenkoa, Oncidium onustum, Oncidium holochrysum, is a species of the genus Zelenkoa. This species was described by Mark W. Chase & Norris Hagan Williams in 2001.
IDENTIFY ZELENKOA ONUSTA
Zelenkoa onusta is native to Ecuador and Peru. The plants occur on the coastal lowlands of western Ecuador and north-west Peru, where precipitation is sporadic, but the air is characterized by high humidity. They grow on cactuses and on trees in dry forests, usually at sea level, but they have also been reported at an altitude of 1200 m.
It is a miniature sized, hot to cool growing epiphyte, which reaching up to 12 cm high, with small conical-ovoid, longitudinally grooved, spaced close together on the rhizome, gray green appearance with purple spots, 3 cm long pseudobulbs that carrying a single apical, erect, very coriaceous, 9-10 cm long, 1.2-1.5 cm wide leaf.
The Luxurious Zelenkoa blooms in the summer and fall on the basal, fairly lax racemose inflorescence with few to many, long-lasting, non-fragrant flowers. The flowers have a diameter of 2 cm, height 2.5 cm, they are fully open. The outer petals of the perianth are triangular, pointedly tipped, bright yellow, with a central reddish line. Large, almost round internal petals of the perianth are bluntly finished and have small red spots at the base. The yellow lip is tripartite, the width of the middle part of the lip is smaller than the width of the side edges. The light-brown thickening near the prone is covered with very fine red spots. The green prong has bright yellow wings with red spots. The pollen chamber cover is yellow.
ZELENKOA ONUSTA 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:
Zelenkoa onusta needs a light level of 25000-35000 lux. The maximum intensity tolerated by the plant. When lifting them, do so gradually, checking for signs of burns. Strong air movement should be ensured all the time. It seems that this species bloom better in full light than in shading.
Temperature:
It is a thermophilic plant. The average daytime temperature during the year is 28-30 ° C, at night 20-22 ° C, and the daily amplitude is 8-9 ° C.
Humidity:
The Luxurious Zelenkoa needs the humidity of 75-80% throughout the year.
Substrate, growing media and repotting:
Zelenkoa onusta grow best attached to tree ferns or cork. Such cultivation requires, however, maintaining high humidity and in the summer of daily watering; in the case of hot weather even several times. In the case of such suspended plants, during the dry and hot periods it may be necessary to water several times a day.
It is also possible to grow in baskets or pots filled with loose, permeable ground that allows the roots to dry quickly after watering. Repotting or dividing plants can only be done at the beginning of the emergence of new roots, which enables the plant to quickly root in the shortest possible time and with minimal stress.
Watering:
Precipitation is scarce all year round. An additional source of moisture is abundant dew and evening fog. The plants grown will probably react with a better growth for morning fogging for most of the year, but this should be done more often in summer and less often in winter.
Fertilizer:
During the active growth, 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:
In winter, watering for Zelenkoa onusta can be reduced, especially in cloudy and cold weather, but the substrate should not be allowed to dry for a long time. Fertilization should be limited or should be completely abandoned until spring, when new growths appear.
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