Daisy, Got it: take bath for cleanness! Yet, with all the hard water we have here I wonder if the after-deposits or residual will harm the "paper-thin" zygo leaves?
Alice, I can imagine many orchids with thick, fat leaves (e.g., vanda) would enjoy and take benefit from water shower often times during warm, dry days... but for the not so much robust leaves of zygo, may be, as Daisy mentioned, there is a requirement: quick dry-off, after bath treatment?
tarev, Thanks for the idea of how to water/fertilize zygo in different seasons, conditions. So far I have only watered my zygo at root zone twice. May start to spray/mist the whole plant from now on.
Thanks and appreciate everyone's input and help.