Dendrobium jonesii is endemic to far north Queensland. It grows in rainforest and in open forest where it often grows on she-oaks between the Iron Range National Park and Paluma at elevations of 150 to 1400 meters above sea level.
Dendrobium jonesii also called as Jones' Dendrobium, The Oak Orchid, Dendrobium fusiforme, Dendrobium fusiforme f. magnificum, Dendrobium fusiforme var. blackburnii, Dendrobium fusiforme var. fusiforme, Dendrobium jonesii subsp. bancroftianum, Dendrobium jonesii subsp. blackburnii, Dendrobium jonesii subsp. jonesii, Dendrobium jonesii subsp. magnificum, Dendrobium jonesii var. jonesii, Dendrobium jonesii var. magnificum, Dendrobium ruppianum, Dendrobium ruppianum f. magnificum, Dendrobium ruppianum var. blackburnii, Dendrobium speciosum f. bancroftianum, Dendrobium speciosum var. bancroftianum, Dendrobium speciosum var. fusiforme, Thelychiton jonesii, Thelychiton jonesii subsp. bancroftianus, Thelychiton jonesii subsp. blackburnii, Tropilis ruppiana, is a species of the genus Dendrobium. This species was described by Alfred Barton Rendle in 1901.
IDENTIFY DENDROBIUM JONESII ORCHID PLANT
Dendrobium jonesii is endemic to far north Queensland. It grows in rainforest and in open forest where it often grows on she-oaks between the Iron Range National Park and Paluma at elevations of 150 to 1400 meters above sea level.
It is a mall to medium sized, hot to warm growing epiphytic orchid with dark, grooved and swollen basally, 20-50 cm long and 3-4 cm wide stems carrying 2 to 7 ovate, apically crowded, thin leaves.
Jones' Dendrobium blooms in the winter and spring on 1 to 4, erect to arching, racemose inflorescence arising from the nodes towards the apex of the stem and carrying 30, spicily fragrant flowers that often do not open fully. The flowers are white or creamy yellow. The sepals and petals are acutely lanceolate and are much incurved. The labellum is white with purple markings.
DENDROBIUM JONESII 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 jonesii do best in full sunshine (25000-50000 lux), close to the glass where glasshouse treatment is required. In addition to the natural light, you will have to use artificial light lamps.
Temperature:
The average temperature of the summer day is 30-32 ° C, night 22 ° C, giving a daily difference of 8-9 ° C. In winter the average day temperature is 28-31 ° C, night 11-13 ° C, giving a daily difference of 15-18 ° C.
Humidity:
For most of the year, The Oak Orchid need the humidity of almost 80%, but at the end of winter and at the beginning of spring it drops to around 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 jonesii 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:
Jones' Dendrobium will need heavy watering from the commencement of Summer until the first chill spell of Autumn, when watering should practically cease until the new shoots appear in Spring. 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 jonesii 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.
COMMENTS