Dendrobium

Dendrobium

The homeland of the orchid Dendrobium is the tropics, with a monsoon climate of the countries of South Asia. In its natural environment, it lives as an epiphyte. The plant belongs to the sympodial orchids, which means that after a period of growth, the mother bush forms daughter allotments, thus multiplying.

In nature, it grows on the trunks of trees, using them only as a support, without parasitizing on them.

The strap-shaped or elliptical leaf plates are arranged alternately. In their sinuses grow buds, they contain from one to five colorful “waxy” flowers, often gently fragrant. Flowers are colored from snow-white to thick purple, lemon and even blue, there are varieties with tricolored petals. As with all orchids, the dendrobium needs its own approach. This is not to say that they are very capricious, however, to make it please with lush flowering, you will have to try a little.

Lighting for Dendrobium Orchid

Dendrobium is a light-loving species of plant and prefers well-lit window sills on the east and west sides without the dining burning sun. From the south, it will be necessary to shade the flower with blinds or other devices. However, species such as “Moniliforme”, “Paris”, “Beautiful”, on the contrary, need the sun and are not harmed by its direct rays. Keep this in mind when purchasing an orchid dendrobium in an apartment with windows only on the south side. On the northern windows, you will have to organize additional lighting in the form of phytolamps or fluorescent lamps of sufficient power.

Lighting plays one of the main roles in the maturation of young shoots, it is recommended to extend the daylight hours for them to at least 12 hours.

The newly purchased dendrobium should be accustomed to the sun gradually, since in garden centers it was most often illuminated with the help of artificial lighting.

How much light the flower has enough – the leaves will show: a green even color indicates that the plant receives the right amount of light, if it is not enough – they will become yellow and dim.

Temperature for Dendrobium Orchid

In the summer months, when dendrobium is actively developing, the most comfortable temperature for it will be moderate, namely: + 25C during the day and + 20C at night.

Importantly! At an air temperature above +30C, the growth of the plant stops.

In autumn, when growth stops, create a temperature fluctuation of +15 … + 20 °C day and night + 5 … + 10 C. At this time, it is vital to provide the dendrobium with enhanced lighting and stop watering. Only when these extreme conditions are met, the dendrobium orchid forms young flower buds. After they swell, place the plant in a warmer place, this will help prolong the flowering phase. The light should be quite soft. To protect the buds from dropping, do not change the direction of the light.

Humidity for Dendrobium Orchid

Like all orchids, dendrobium prefers high humidity of 50-60%. But the usual apartment in 30-35% is also quite resistant to it. If young leaves twist in the form of an accordion or wince – this is a signal that the plant needs to be sprayed more often. Make sure that water does not get into the leaf axils – this can provoke decay.

To raise the humidity in the house – organize a lower watering, place a pot with an orchid in a container with wet claydite or moss. But, keep in mind that stale air is a comfortable condition for the reproduction of bacteria and fungal diseases. Therefore, systematically ventilate the room where orchids grow.

Watering dendrobium orchids

During the period of growth and development – in spring and summer, it is necessary to water the plant generously. This species is endowed with aerial roots that soon dry out and do not like a long stay in dampness. Therefore, the substrate, between waterings, should be allowed to dry, but not dry out completely. Watering the orchid Dendrobium is carried out by immersing the pot in water for 10-15 minutes two to three times a week.

However, such a type of dendrobium as “Densely Colored” requires moisture every day. Water for this is well settled or filtered, 18-22 degrees.

Importantly! After the end of growth and the formation of young shoots, the substrate must be allowed to dry completely, otherwise, instead of buds, babies are formed.

Many dendrobiums prefer to take a couple of times a week, the so-called baths, instead of watering. Immerse the pot with the plant in a container with settled water so that it is only half immersed in water, after 20-30 minutes, put so that all the water is glassed from it.

During winter dormancy, reduce watering at times, and some species are not watered at all during this period.

Feeding dendrobium

From April to September, when the culture is actively growing, it is enough to feed it 2 times a month. To do this, use liquid fertilizers marked “For orchids”. Initially dilute the tablet and granulated dressings in water. This is enough for the orchid dendrobium of any kind to be healthy and blooming magnificently.

Sometimes you can apply foliar dressing. Then, dilute the same fertilizer in a proportion five times more than indicated on the package, and using a spray gun, moisten the leaves and stem of the flower. Evergreen orchids dendrobiums, in winter, once you can feed with phosphorus-potassium fertilizer.

Importantly! In order not to burn the root system of the plant, before fertilizing, moisten the substrate well. In order for the soil not to be salted – sometimes wash it from the shower with warm water, then two or three liters of filtered water.

Prune the dendrobium

Never prune a dendrobium orchid during flowering! If it seems to you that the arrow is faded or superfluous – you are deeply mistaken – in it the plant has retained useful substances that are subsequently spent on the growth of young processes.

If the leaves are very wrinkled, yellowed and dry out – they have definitely squandered their resources and will no longer “feed” young shoots, you can safely get rid of them. It is necessary to prune damaged and decaying roots so as not to provoke the spread of infection to the entire plant.

Flowering of the orchid Dendrobium

Dendrobium blooms regardless of the time of year, if only the full cycle of plant development passed. Most often, the flowering period occurs in autumn and lasts until spring. The bush is completely covered with pure white, cream, pale pink, purple and with a yellow core of flowers, from which it is impossible to take your eyes off.

When it is very hot and at high humidity, quite often the culture converts the kidneys into “babies”. After the roots reach 4-6 cm, they are separated from the mother plant. If the “babies” are left, a lush bush will form, similar to that which grows in nature.

To provoke flowering – place the plant in a bright, but not hot place and reduce watering.

Root care

Dendrobium grows many aerial roots. Do not put them in a flowerpot – they are looking for support and nutrients, and often go down into a pallet with accumulated moisture.

Care of sheet plates

The leaves of the dendrobium orchid must be wiped down to remove dust. After flowering, the pseudobulb sheds its leaves. Usually these are the lower leaves, they first turn yellow, and then fall off. This is a natural state for the plant, do not be afraid.

Transplantation

A strong, flowering bush does not require transplanting, it is better not to disturb it once again.

The orchid is transplanted after two to three seasons, after which the substrate loses its nutritional qualities. After this period, it oxidizes, cakes, and the plant is clearly cramped in the flowerpot. For transplanting, use a pot 2-3 cm wider than before, it should not be transparent, it is better to use ceramic or dense plastic. In a transparent pot, the roots overheat. When dividing, leave at least three pseudobulbs in the bundle. In the “family” the plant will bloom much more lushly and willingly.

Substratum

As a substrate, coniferous bark with the addition of moss-sphagnum and charcoal is suitable. In apartments with central heating, where the air is dry, 20-25%, increase the amount of moss, it helps, for longer, to keep the humidity in the pot. On its bottom, place, for weight, a few gravel stones for stability. Be sure to take care of drainage. Claydite is best suited, spread the bark of a large fraction on it, place the roots of the orchid and sprinkle everything with small bark. Put a layer of moss on top. So that the bark does not stick together longer, and the soil passes air well, add foam plastic to the substrate.

Why doesn’t Dendrobium bloom?

Most of the reasons why a plant does not bloom are related to the content of the flower:

  • improper watering;
  • lack of light;
  • frequent movement to another place;
  • non-compliance with a favorable temperature;
  • disease.

Period of rest

The rules for the maintenance of the dendrobium orchid read:

  • for a good rest, transfer the orchid to a place where during the day 15-18 degrees celsius, and at night 10-15;
  • gradually reduce watering and stop spraying and fertilizing;
  • remove the artificial backlight.

Under these conditions, the orchid will experience stress and stop, for a while, its growth. Observe the plant – in two to three months, new young sprouts will appear on it. At the time when the sprout reaches 3 cm and its root appears, resume watering.

Pests and diseases of dendrobium orchids

Dendrobium can become infected with spider mite bug, small mealybugs, shield insects, and garden aphid pests. If you notice signs of finding these parasites on your friend – immediately spray him with special preparations, of which there are a large number on sale today. With improper care, the plant is exposed to fungal infections. If you overwater the substrate, the roots and stem rot. Such a plant is quite difficult to save. Emergency placement in new soil and removal of missing roots and pseudobulbs can help. Treat the remaining roots with activated charcoal or another fungicide.

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