Using Horticultural Charcoal and Permilite in repotting
 

Hi
Im from Sydney.I bought Singaporean Dendrobiums two weekago...I repotted these using horticultural charcoal and permilite onl.Is this ok?How many times do I need to water them?I noticed the roots are turning light brown.Is thisa bad sign?Rotting....ND THERR ARE KEIKIS TOO with roots shud I get these off now?I also hang the orchids by the branches of the tree with morning sun...shaded during the hottest period and getting the late afternoon sun.The tree is located at the north side.
Thank you in advance.
Rachel

:welcomeflowers:

Photos are helpful, but you need to post three more times to post them. There are several types of Dendrobiums. Most like to have lightly moist potting mix, at least while they are growing. Some like moist mix year-round, some a bit dry in winter

I agree that pictures would help, and either a picture if the flower and/or the actual name found on a tag if you have one. Also, if you suspect a problem then it may be best to just give it morning sun and let it be shaded the rest of the time until you learn if you truly have a problem or not. Late afternoon sun can still be intense.

Photos - Singaporean Dendrobiums as per Seller (from Charity)
 

Hi

I am enclosing photos. Thank you very much in advance.

Rachel

I need your help please.

I'm not familiar with the material you used to put this with, but it seems to me that it would not retain much water. If that's truly the case then you may want to increase your watering. To my untrained eye, it looks like the roots have dried up.

Usually charcoal and perlite are used as additives in potting mixes of bark and sphagnum. You may have to water a lot more often.

Charcoal is fine to pot in..... Many people used it to pot in not to long ago.


As far as the keikis go.... Leave them for now. They'll come of fairly easy when there ready.

Thank you fod ths info ...wil try to water them more oftdn due to tge pure mediumd used...

Rachel,

If you are living in a warm, humid area, you might be able to get away with this medium if you water daily. It is certainly not one I would use as a "stand alone" media, as previously said by "Orchidboy".

Try the search key on this forum and see what comes up on dendrobium culture. I am sure there are many suggestions. Select one that best fits your conditions to give the dendrobium what it needs.

I also think from the photo, you are referring to Perlite and not Permilite, unless Australia has a different name for the same product.

CL