(Zigo + Onc) - HR = Poor growth

[rbarata]

I had to stand my Oncidium hybrids in sphagnum in dishes of water as spring progressed

Do you mean the same as jcec1 does?

I would bring your Zygos inside to the coolest room, and have them in clay pots for evaporative cooling.

I have it inside. Fortunately, is spite of the temps outside, the max I'll get indoors in that room is 28ºC (82,4 F). My problem is only low HR.

I had good results with a ceramic pot ( with holes) and a spaghnum mix. You could grow them with other plants, or tent them.

I thought about spaghnum, at least they won't dry out in one or two days. How to you tent them? Mine are in the living room so tent them would be something awkward to see... to the visitors, I mean.