Cypress & rockwool combo for media--your thoughts?

[Paul Mc]

It may help if you tell us also what you intend to pot in it. Different genera have different needs.

I, too, would like a refresher on rock wool (what it looks like, good for, etc...) and the combination of it with a wood. I nearly lost two orchids that appeared to me where potted in this type of material, and nearly lost all of my roots. They are Oncidium alliance, but the name is alluding me.