Indoor plants

Dendrobium nobile

The waterings

The Dendrobium nobile is very demanding in terms of watering and humidity, being an epiphytic plant or with aerial roots. Following the seasonal trend that occurs in its natural habitat, this plant must be abundantly watered throughout the summer, while avoiding water stagnation, while in winter it is necessary to completely suspend watering because the plant falls into a state of rest. vegetative. The best choice is to always use rain or demineralized water. Furthermore, in order to guarantee the Dendrobium a luxuriant growth, attention must be paid to the humidity which must be kept constant around 80% for the entire duration of its vegetative cycle which occurs in summer, while in winter the values ​​must fall to 60%.

The cultivation techniques

Dendrobium nobile is an epiphytic plant, that is, it lives in nature on the trunks of trees, absorbing the nutrients necessary for its development from its aerial roots directly from the humid atmosphere typical of tropical areas, therefore it does not need a normal growing medium. The planting must be carried out using a substrate composed of osmunda and sphagnum or a mix of organic materials, such as bark and leaves, and non-organic materials, such as gravel or clay, which provide drainage. When you buy a Dendrobium nobile plant and you have to choose which room of the house to place it, remember that, even if the plant is able to tolerate rather low temperatures up to 5 °,


From spring it is essential to give Dendrobium nobile a nutritional supplement to help it come out of rest and start a new vegetative phase. For this purpose, particularly nitrogen-rich orchid fertilizers can be used every 2 weeks until August. From September onwards, its needs change and the fertilizer must also be replaced, this time it must be chosen from those based on potassium. On the market there are ready-to-use products and others to be diluted. The latter can be used in two ways: a first method is the traditional one which consists in watering the plant directly on its substrate, in the second the product is diluted in a container full of water and the plant is left in immersion for about an hour.

Dendrobium nobile: exposure, diseases and treatments

This orchid is particularly demanding when it comes to light. In fact, it prefers very bright locations, but sheltered from the sun’s rays and the sill of a window facing east is generally the ideal place to grow it. The diseases that most frequently attack the plants of Dendrobium nobile are to be attributed to incorrect cultivation techniques concerning humidity and watering. If the plant has too high a humidity it can be easily attacked by the cochineal which causes spots and puff-like dots on the plant. Conversely, if the humidity is low, the Dendrobium can be attacked by the red spider. Both diseases are resolved with a broad-spectrum anti-parasite treatment readily available in specialized stores.

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