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Dendrobium

How to water

Living in nature in tropical forest areas, the dendrobium continually needs water that ensures it has the right level of humidity. This plant can be watered in two ways paying attention in both cases to use only distilled water and never that of the tap. The first method consists in carrying out traditional watering directly in the cultivation substrate with small quantities of water. In the second, however, a nebulizer is used which has the purpose of reproducing the humidity present in the atmosphere of the natural habitat of these orchids. For this purpose, moreover, the kitchen and the bathroom are the ideal domestic rooms in which to place the dendrobiums as when cooking and using hot water, water vapor is formed in these rooms.

How to grow it


Dendrobium requires a growing medium consisting of sphagnum and osmunda, an organic material that comes from the roots of a fern. If you do not have the possibility to find these two substrates, you can opt for a gravel bottom with medium grain size. When the roots have occupied the entire pot and start to come out of it, it will be time to repot. This operation is very delicate and, if not done perfectly, could result in the death of the dendrobium. First of all, the plant should be placed in a container with warm water in order to soften the roots and make them easier to untangle. Subsequently, before planting, all dead parts must be removed using disinfected tools and treating the cuts with a specific healing product that prevents

The fertilization of the Dendrobium


The dendrobium needs constant fertilization, especially in the event that it is grown on a stony and inorganic substrate. Fertilization must be done every 2 weeks using specific products for orchids that are commercially available in the varieties ready to use or to be diluted. In this second case, water enriched with nutrients can be used in two ways: by watering the plant traditionally or by using it to fill a container in which to lay the plant for about an hour and then put it back in the pot. During the year, dendrobiums require different types of nutritional elements, depending on the season: from February to August you must choose nitrogen-based compounds, during the other months those rich in potassium.

Light, diseases and remedies


Dendrobiums, like all epiphytic plants that live under the crowns of tropical forest trees, need a lot of light but never direct sunlight to grow healthy and luxuriant. The most common pathologies that can affect this type of orchid are cochineal, or the invasion by phytophagous insects called coccidia, or the attack of the red spider, both of which can be eradicated through a broad-spectrum pesticide treatment. Incorrect cultivation techniques, such as excessive administration of water that causes dangerous water stagnation or insufficient exposure to sunlight, cause leaf necrosis which can lead to the death of the plant, if these habits are not promptly changed.

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