Help with Phragmipedium green hornet
Hello all,
Long time reader first time poster. This is the only phragmipedium I have ever bought, phragmipedium green hornet. I bought it in spike two months ago and so far it keeps producing new buds. Recently a couple of the bottom leaves have started turning yellow which has me worried that it could be water/fertilizer issue and this could be developing into a root issue.
I know these things are really sensitive to dissolved salts in their water and I have been very careful to use distilled water and never let them dry out. I have fertilized with better grow 20-14-13 at 1/4 strength which after a couple of hours I flushed with distilled water. I have been stepping up my game and bought a tds meter and pH meter but not really sure what I need to be doing when I fertilize these. I have not really put much thought into the fertilizer regimen until I bought this plant am not really sure how the math with teaspoons and so forth translates into a specific ppm paramter, or what that even should be for this variety of orchid.
I have it growing on a window in a humidified space with supplemental lighting. It is growing next to a dendrobium spectabile and a box baby cattleya in spike so I have pretty much ruled out a light issue.
Does it look okay or should I be worried? Any recommendations? I really don't want to kill this plant.
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