Dendrobium hasseltii is native to Jawa, Sumatra (Mt.Kerintji) and the Malay Peninsula. In Java, these plants were meet on the edges in high-mountain forests, at an altitude of 1500-3000 m.
Dendrobium hasseltii also called as Hasselt's Dendrobium (named to honor a Dutch Botanist in Indonesia), Spinach Orchid, Callista cornuta, Callista hasseltii, Dendrobium cornutum, Dendrobium curtisii, Pedilonum cornutum, Pedilonum hasseltii, is a species of the genus Dendrobium. This species was described by John Lindley in 1830.
IDENTIFY DENDROBIUM HASSELTII
Dendrobium hasseltii is native to Jawa, Sumatra (Mt.Kerintji) and the Malay Peninsula. In Java, these plants were meet on the edges in high-mountain forests, at an altitude of 1500-3000 m.
It is a small to large sized, cool to cold growing epiphyte, which reaching 20-61 cm in height, with slender, fractiflex, short and erect to pendant and 20-61 cm long stems carrying many, thin, lanceolate, 1.5-7.0 cm long leaves.
Hasselt's Dendrobium blooms on a very short, axillary, racemose, few flowered, honey scented inflorescence, several arising from the leaf nodes at the apex of leafless parts of mature canes occurring in the late summer and fall. The flowers are 2.5 cm in diameter. They are usually deep pink to dark purple with an orange spot on the lip. The lip has 2 notches at the apex.
DENDROBIUM HASSELTII 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 hasseltii needs a light level of 25000-40000 lux. A diffused or slightly shaded light is recommended and should avoid direct sunlight.
Temperature:
Throughout the year the average day temperature is 17-19 ° C, the night 11-12 ° C, which gives a daily difference of 6-8 ° C.
Humidity:
Hasselt's Dendrobium needs the humidity of 80% in summer, then falling to 65% in late winter and early spring.
Substrate, growing media and repotting:
Dendrobium hasseltii are best mounted on tree fern or cork pads, cause of the often hanging habit. Humidity, however, must be high, and in summer, the plants must be watered at least once a day. You can also grow this orchid in pots, as small as possible, or in hanging baskets filled with loose, quickly drying substrate. Repotting can be done at any time as soon as new roots grow.
Watering:
Precipitation is very abundant from spring to autumn, but it is drier during 2-3 winter months. During the growing season the plants can never completely dry, but in the late autumn the amount of water should be gradually reduced.
Fertilizer:
It is recommended to apply a 1/4-1/2 dose of orchid fertilizer weekly. From spring to mid-summer, high nitrogen fertilizer is preferred, and then until the end of autumn, go to the high phosphorus fertilizer.
Rest period:
In cultivation, the amount of water in the winter should be slightly reduced and allow Dendrobium hasseltii to dry somewhat between watering. However, they should not be dry for too long. Fertilization should be reduced or eliminated whenever the plant is not in active growth.
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