Hi!
A few months ago I bought a cattleya (turns out I think it has been reclassified as Guarianthe) and I've had some problems with the poor orchid so I was hoping somebody could help me a bit.
- I can't get the orchid to grow a single root.
Thankfully the orchid has a few working roots but since I bought it, it grew a new pseudobulb but when the time came to start growing roots the first was "devoured" by mould, the second (which was aerial) simply turned black and stopped growing and the third grew long enough to reach the media but after a short while the tip turned black and stopped growing.
I hadn't fertilised the orchid back then and when I did it was so watered down I don't think that amount could have burned the root tips. As for the media, it is inorganic but I'm careful to keep it moist to maintain humidity to avoid the too dry media to dry out the tips of the roots.
- The newest pseudobulb the orchid grew when I brought it home is plump. Really plump. It's so plump there are two gashes along it, but I read they're caused because of lack of hydration so I'm a bit confused because if the pseudobulb were any plumper it would explode. Thankfully the orchid seems fine and I really don't think these gashes could be infected, but it was something I wanted to ask you about.
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As I said before, I try to keep the media humid so that roots can grow but even though I keep the area well ventilated, if I overdo it, even if it's just a bit, mould starts attacking the orchid. I've cleaned the area with hydrogen peroxide.
Any help will be greatly appreciated it. Thanks for reading!
Guarianthe questions
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