I've had a dendrobium spectabile for about a year, and now my orchid is growing a number of fresh green roots, as in the attached photo. I'm very excited about this, but I'm also worried about the roots being exposed. Should I be repotting the plant and covering up the new roots? Thanks for any advice you can provide.
If you're growing inside a home, with lower humidity than in a greenhouse, I might suggest repotting now to a medium with smaller particle sizes. Dendrobiums don't do well if they dry out during the growing season. You would need to water a Den. in that large bark almost every day during the growing season.
Another alternative would be a layer of sphagnum moss on top of that bark. Make sure the moss stays moist now that growth has begun.
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