I just bought this Doritis pulcherima and am wondering if it needs a repot. The roots look healthy but is this normal for them to be popping up? I just lost a Doritis and I'm determined to keep this one healthy...please advise experts.
It's common for a lot of orchids to grow roots like that. Sometimes it's because they're very healthy, and sometimes it's because the medium is old and the roots in the medium are rotting.
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If the medium is good, remember that these are "air plants" so wild roots are quite normal. However, if you haven't repotted recently, take it out and have a look - any medium needs to have big spaces and lots of air since these want "humid air" around the roots rather than wet, soggy medium.