Your roots withered and died due to not watering them enough and because they weren't matured enough to absorb much water. If your air conditioning air flow is flowing onto your orchids, they will all die. Phals don't need a lot of humidity but do need warmth, and good light levels. If they dry out quickly, water them. I pot most of my phals in clay. Some with large side slits. I water them every time they are dry. I see one good looking root down in the moss. Orchids usually, for those we get from TJ, WallMart, Lowes, ect, are force bloomed on plants too young to really bloom and that stresses them out.
Last edited by james mickelso; 06-25-2014 at 01:01 AM..
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