Hi Everyone!
I just noticed that someone had linked to my website from this thread, so I thought that I'd better come here and register at the forum
I've been growing Phrags for several years, and I grow them mostly from flask. I've found that Phrag hybrids are probably the easiest of all orchids to grow... they're practically impossible to over-water (with the exception of some of the caudatum types), and they grow nice and quickly
The most important thing with Phrags is to water them a lot! My plants that are in bark mixes or CHC mixes get water every day. The vast majority of my plants are growing in circulating water or in S/H. With constant access to water, most of my phrags grow from flask to blooming size in about a year and a half to two years.... and making sure that the plants are constantly wet protects them from leaf-tip burn from fertilizer. Phrags are much more tolerant of low quality water or salts if they never dry out.
Other than that, my Phrags seem to grow best in intermediate temperatures, but bloom best in cool temperatures (the color difference is more dramatic than you might guess).
With good air movement, most phrags can handle very bright light; many growers (such as Leo Schordje, if I'm not mistaken) recommend Cattleya light levels. I don't grow them that bright, but they do usually get as much light as I give strap-leaved, multi-floral paphs.
Anyway, I don't know if that's much help, but I thought I'd put in my $.02
Good luck!
As Ever,
Matthew Gore