| Ortho's Complete Guide to Orchids is a very good book with some pretty comprehensive culture instructions for lots of different types of orchids. It has a chapter dedicated to Phrags, as well as some pretty obscure varieties (are Stanhopea and Neofinetia obscure?).
That being said, it says Phrags like good moisture, but also good drainage, medium to high light (unlike Paphs), and intermediate temps, which according to the book are from 70-80F during the day. and 55-65F at night.
Hope this helps! |