Help! Persisting Mold in All repotted Phalaenopsis and Cattleya

[WaterWitchin]

Originally Posted by Roberta

That does look like a nobile-type Den. Temperature is no problem for that one. This type of Dendrobium does like to be drier (and cooler) in winter. My experience is that in a dry environment, you do still need to give it some water. And in that basket it will dry out fast. So that one, maybe water maybe once or twice a week. But still water thoroughly. We're fighting a fungal problem so keeping the root zone clean is very important - even if the water during (relative) dormancy keeps it from blooming, getting the environment cleaned up is #1, #2, and #3. It is a high-light plant (near a window would be good, will get both light and a bit of a chill)

So, that one can go dry between waterings in winter but still benefits from water after it does so.

And most leaves fall off, which is not of concern, correct? I remember when I first had one, all the leaves fell off and I thought it was a goner and trashed it.

[Roberta]

Originally Posted by WaterWitchin

And most leaves fall off, which is not of concern, correct?

Correct. And for those Dendrobiums, don't expect root growth until spring. And don't fertilize at all until spring when it shows signs of waking up. Basicallly, it should just sit there, probably until February-ish or thereabouts.