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Old 04-01-2007, 01:58 AM
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repotting finely rooted orchids

Hello everyone,

I'm sure there are probably many posts on this topic, but here goes another one. I have successfully repotted many phalaenopsis orchids and assumed the same principles would apply to repotting my miltassia charles m fitch Izumi, except I'm not used to seeing roots that are so fine. I first soaked the old pot with some water and a drop of superthrive before taking it out of the pot. When I took the plant out of the potting medium, 95% of the roots were medium brown and it was hard to tell if it was root rot or healthy because they didn't feel quite mushy and there was a huge clump of what looked like brown florist foam (it's usually green) in the center of the roots. I managed to get most of it out and washed the roots off, and it was a little bit lighter, but not by much. I trimmed 70's of the brownish roots off, but left some on for fear i was doing the wrong thing. I can tell that two of the young pseudobulbs are putting out whitish green roots and there are a couple of healthy whitish green aerial roots that still exist. I guess my question what do healthy roots look like in orchids with a fine root system? Are they supposed to be white when wet? or green? or both? I ended up using fine coconut husk, large perlite, and fine pieces of charcoal to repot my miltassia. I hope it survives this very traumatic experience.
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