No, I’ve not tried it. Apparently it’s the Mycorrhizae that makes the difference. He did mention that Russ Bolt of Looking Glass Orchids in NC pots in it (only potting mixture) because of the number of orchids he has. It allows him to water less. I bought a division, Lc. Mary Elizabeth Bohn ‘Royal Flare’ AM/AOS, from Russ potted in it. It had 12 flowers on 4 spikes when I bought it. After bloom, I repotted it in my mix as I was afraid I’d kill it in that mix by overwatering. It was a bear to clean the Pro Mix out of the roots (8” pot), took me forever and damaged a lot of roots as it was very packed in like old moss in a big box store phal. Roots were healthy, though overall. I was concerned it wouldn’t bounce back because of the extreme repotting trauma. The plant adjusted well over a few months and blooms almost all the time, as it throws a lot of leads. I have 2 flowers now. Usually get between 2 and 4 at a time. But it’s bloomed 5 times since 9/15/2020 when I bought it. 11/20, 6/21, 8/21, 10/21 and now. It’s a very prolific grower (much like C. trianaei semi-alba ‘Kathleen’), hence almost always in spike, but sometimes the leaves curl a bit. All of this might just be indicative of the cultivar. I don’t know. But I wish I could get all the spikes to bloom at once like he did!!
