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Question: Vanda and dendrobium
I dare to disturb you due to two problems.
The first is to know how I should wet the Vanda orchid.
Some people say a splash of water every now and then, some recommend putting it in the water for a while.
I've already taken four. Three died and one purchased last August begins to make yellow leaves.
I state that I keep them hanging from the window and spray them twice a week. Every now and then I dip the roots in the water for a moment. I ask her, since I particularly like the Vanda orchid, as is the right procedure for inflamation.
I have also seen the Vande in transparent glass vases for some time now. Do they fit so well or should their roots be free?
Another question. I have several noble Dendrobium. Their stems are getting taller and taller. I ask if it is possible to cut them off for aesthetic reasons or is it better to leave them like this?
I thank you in advance for your answers and I take this opportunity to congratulate you on your column.
Vanda and dendrobium: Answer: Vanda and dendrobium
Thank you for contacting us about the questions about Vanda Orchids and Dendrobium via the Expert
A large group of plants and hybrids whose origins are predominantly tropical belong to the Orchidaceae family. In order to grow appropriately, these plants require the environmental conditions of the country of origin.
The genus Vanda has about fifty species, all epiphytes with a strong and erect stem, fleshy leaves and leathery at the base, and thick and flexible roots produced by the stem that rises in the middle of the leaves.
As for watering, the Vanda claim a great atmospheric humidity that does not have to be less than 50% relative humidity, especially in the active period of the vegetation that normally, for most of the hybrids, goes from March to October. These plants prefer a lower daytime atmospheric humidity than the nocturnal one and therefore it is necessary to be careful to nebulize the air around the orchid with greater intensity after sunset, particularly during the long days. This genus of orchids also requires abundant administration of water during the growing season and a little less during the apparent rest (ie in winter). Take care not to force them to stay completely dry. As for the transparent glass vases seen by the florist, I think they are just a matter of aesthetics to increase sales given that research done does not indicate this type of cultivation, so the placement of its orchids is the right one.
Regarding the stems of Dendrobium nobili it is advisable not to cut them in this vegetative period and wait for the winter period to shorten them.
With best regards