What's important in choice of medium gets down to the basics... under YOUR growing conditions (watering, humidity, type of container), are the roots getting both moisture and air? If the answer with sphagnum is "no", then you don't want to be using it. If "yes" then it does have a place in the regimen.
I use sphag a lot in baskets outdoors in an area with relatively low humidity so there is rapid drying. Even when it breaks down, the fibers leave lots of air spaces. I do use the long-fiber Spagmoss. But in plastic pots in a high humidity environment it's probably a poor choice for most orchids. (There are exceptions to every generalization, of course.)
Last edited by Roberta; 03-26-2023 at 01:02 PM..
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