Apartment plants

Vanda and dendrobium


Question: Vanda and dendrobium


I dare to disturb you for two problems.

The first is to know how I should wet the Vanda orchid.

Some say occasionally a splash of water, some advise to put it for a moment in the bathroom.

I've already taken four. Three died and one purchased last August begins to make yellow leaves.

I state that I keep them hanging on the window and I spray them twice a week. Every now and then I dip the roots in the water for a moment. I ask you, since I particularly like the Vanda orchid, what is the right procedure for watering.

In addition, for some time now I have seen Vande in florists in transparent glass vases. Should they be well placed or should their roots be free?

Another question. I have several noble Dendrobiums. Their stems get taller and taller. I ask if it is possible to cut them a piece 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 for your column.

Best regards.


Vanda and dendrobium: Answer: Vanda and dendrobium

Dear Antonella,

Thank you for contacting us regarding the questions about the Vanda Orchids and the Dendrobium through the section of the Expert of Gardening.it ...

The Orchideacee family includes a large group of plants and hybrids whose origin is mainly tropical. In order to grow properly, these plants require the environmental conditions of the country of origin.

The genus Vanda has about fifty species, all epiphytes with a robust and erect stem, fleshy and leathery leaves embracing at the base and large and flexible roots produced by the stem that stands in the middle of the leaves.

As for the watering, the Vanda claim a great atmospheric humidity which must not be less than 50% relative humidity especially in the active period of the vegetation which normally, for most hybrids, goes from March to October. These plants prefer a lower diurnal atmospheric humidity compared to the night one and therefore it is necessary to be careful to spray the air around the orchid with greater intensity after sunset, especially during the period of long days. This genus of orchids also requires abundant administrations 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 only a matter of aesthetics to increase sales since research has not indicated this type of cultivation, therefore the placement of his 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