Oh, Alice! Your zygo bloom is wonderfully beautiful. I think yours is a different variety? There are no spots on the petals of yours, but another kind of beauty! I checked the BetterGro orchid mix and found the media (fir bark, charcoal, ...) are too fine (small size) for me. I need at least medium size barks for a orchid pot (metal 6x6") with large holes on 4 sides. Also have no idea how long the media would last...
