caparazon wrote:

70% Pine tree bark (no resine)
20% Perlite (Syntetic white little balls)
10 % typical vegetal compost (darkish)


That should be good for Cymbidiums. Most orchids wouldn't want the
compost ingredient but I'm sure the Cymbidiums will do fine with that.

Steve

Thank you to everyone.

I take note.
Would you keep them outside (minimum normal nights temperature here is 8-10 C) exposed to the fresh autum wind and direct morning sun (as they were when I found them) or would you put them inside (15 C at nights)?