Oeceoclades spathulifera yellowing
I got an O. spathulifera (along with some other orchids) as my first orchids in late January. The others are doing great (a juvenile phal pushing out its first flower spike, and a jewel working on its 3rd leaf), but this one has been nothing but trouble. The specimens advertised by the vendor had 4-5 leaves and plump pseudobulbs. Mine came with 1 1/2, the leaves were super dull and marred with black damage near the crown. And the pseudobulbs were wrinkly.
Repotting it the first time, I cut off a bunch of roots that I thought were dead. They were deflated (could roll the roots between my fingers and feel they were hollow), but didn't pull off easily. As I was new to orchids, I thought they must be dead and cut close to 50% of the roots away. Out of all the roots, only one felt full. Fast forward to now, and the pseudobulbs look even worse, and they've never plumped up after a watering (excuse the picture, I'm away from home at the moment and got the boyfriend to take a pic, apparently the plant popped right out when he tried to handle it, so he replanted it a little deeper than I had it). And the cut leaf is dying back.
After seeing the start of the yellowing, before I left a couple days ago, I popped it out of the pot to check for root rot, and there was literally no change. The deflated roots were all still there, all still beige-white, and all still looking limp and deflated. Which got my cogs going, oh no, maybe those roots I cut off were actually healthy. I'm worried that I set back an already rehab plant (that honestly, should not have been sold). Anyone have any tips for me to keep this plant alive and on the right track again?
Here are my culture parameters:
Environment: Small grow tent, 100CFM exhaust fan, around 5 full cycles of air per minute
Light: 110W quantum board + 34W bulb @ 3.5' above ground level -- 11000-13000 lx, 14/10h on/off, around 10 mol/d DLI
Media: 3" terracotta pot, 40% potting mix, 60% random chunky stuff (mostly perlite, some bark, lava rocks, etc), surface goes dry in 2 days
Water/Fertilizer: 2x weekly, 150ppm N at each watering, 3-1-2 fertilizer, flushed monthly
Temperature: 24C day, 20C night
Humidity: 50-70%
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