Bulbophyllum rothschildianum is native to the southern Yunnan Province of China, in the Sikkim region in northeastern India, Assam and Myanmar. These plants grow on trees in the lowland forest at elevations of 0 to 300 meters.
Bulbophyllum rothschildianum, also called as Rothschild's Bulbophyylum (named after the English Banker family and Orchid enthusiast Rothschild), Cirrhopetalum rothschildianum, is a species of the genus Bulbophyllum. This species was described by J.J.Smith in 1912.
IDENTIFY BULBOPHYLLUM ROTHSCHILDIANUM
Bulbophyllum rothschildianum is native to the southern Yunnan Province of China, in the Sikkim region in northeastern India, Assam and Myanmar. These plants grow on trees in the lowland forest at elevations of 0 to 300 meters.
It is a small sized, hot to cool growing epiphyte, which can reach the height of 20 cm, with ovoid, 3.8 cm high pseudobulbs carrying a single, apical leaf. The leaves grow from the top of each pseudobulb. Each leaf with a medium to dark green color is about 17.8 cm long.
Rothschild's Bulbophyylum blooms on a basal, erect, few flowered, umbellate, 20 cm long inflorescence that has fragrant flowers occuring in the spring and fall. The flowers are usually 12.5-15 cm long, but can reach 17.8-20.0 cm. The most prominent feature is the size of the side petals, which wrap to the front of the flower, creating a large, skirt-like structure. They are fused together for the greater part of their length, except for the base. The dorsal petal is relatively small, sharp-tipped and forms a cap over the backbone. The inner whorl flakes are small, the lip also small, but clearly colored and so gently fixed that the slightest touch or movement of the air sets it in motion. The main parts of the flower are covered with very fine, shiny granules, and when enlarged they seem like covered with tiny beads. There are also many convex, brightly colored bumps or bumps arranged roughly in rows or stripes running down the sides sideways. As if these decorations were not enough, the edges of the inner whorl petals and the dorsal petal are curled, with brightly colored fringes of capillarity up to ribbons that dance and move with the slightest movement of air. The flakes of both whorls are raspberry-red in color, covering the greenish-white background.
BULBOPHYLLUM ROTHSCHILDIANUM 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:
Bulbophyllum rothschildianum needs a light level of 15000-25000 lux. Strong air movement should be ensured all the time. The plant need for shading from spring to autumn, but the light should be as much as the plant can bear without burning the leaves. This plant grows well at low light levels, but gives more flower shoots when there is more light.
Temperature:
It is a plant with moderate thermal requirements. The average temperature in summer at day 26 ° C, at night 19-20 ° C, with a daily difference of 7 ° C. In winter, average daytime temperatures are 18-20 ° C and at night 5-7 ° C, with a daily amplitude of 13-14 ° C.
Humidity:
Rothschild's Bulbophyylum needs a humidity level of almost 85% in summer and early autumn, falling to 60-70% at the beginning of winter. The most dry season is the end of winter and the beginning of spring, when the humidity for 2 months falls below 60%.
Substrate, growing media and repotting:
It is best to fixing Bulbophyllum rothschildianum on a cork or tree fern with the high air humidity and provide the plant daily watering in the summer. If the plant grow in pots, shallow bowls or pots on azaleas is recommended. The lower half of the container should be filled with a very loose drainage material, such as thick or medium pieces of bark or cork. The upper half should be filled with a fine substrate made of bark or chopped woody tree ferns that will keep the moisture, but will not get wet.
Repotting is best done after flowering, especially when new roots emerge.
Watering:
In the period of strong growth (from late spring through the summer), the growing medium should be moist, but not soaked.
Fertilizer:
During the period of strong growth, Bulbophyllum rothschildianum should be fertilized every week with 1/4-1/2 of the recommended dose of fertilizer for orchids. You can using fertilizers with less nitrogen and higher phosphorus in the autumn, which stimulates plants to flower in the next season and helps to strengthen new growth before winter.
To avoid the accumulation of mineral deposits during periods of strong fertilization, it is recommended to rinse the substrate every few weeks. Rinsing is particularly important where the water is highly mineralized.
Rest period:
A cool and dry 1-2 months resting period in winter is essential for healthy growth and flowering. At the beginning of this period the amount of water should be reduced, but watering should not be eliminated - even during the driest period Bulbophyllum rothschildianum need occasional morning fogging, with slight watering every 3 weeks. Watering is most beneficial during bright, sunny weather. In the period of drought fertilization should be reduced or even completely eliminated.
Scott Gordon again , informative as always , tks . Got mine in a basket of moss I think, was overgrown then .Have now found a 'sweet spot ' for it to hang . Have added moss . Dries on the surface in a few hours after a good soak in rainwater . Gets plenty light and some afternoon sun . Enough wind . Got 3 nice spikes last year , 8 this year . From your figures , I have the perfect climate for them here :-) Thanks again .
ReplyDeleteThank you too!
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