Answer (1 of 4): The orchids that you buy in the store are packed in so much moss that they often have too much moisture held around the roots, which causes rot. You can pull the whole thing out of the pot to look. If the moss is packed tightly in the roots and the center roots are turning white
Maria's Orchids: I Don't Like Sphagnum Moss
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Should I repot my phalaenopsis orchid? I just repotted it about 6
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I read that cinnamon powder can be used to help a scab form on the
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Grocery store phalaenopsis that I've had since July. Finally transplanted from densely packed sphagnum moss! Pretty impressed with how the roots look, regardless! : r/orchids
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Can I use regular pine bark, as sold for decorative gardening
Do baby orchid plants need moss? - Quora