Quote Originally Posted by Styx
Sooo... basically, it's more like I need to take into account what everyone said about light requirements, try to match them best I can, and just see what works for the Phal I have and what doesn't? I once thought the light requirements were a concrete thing, but it seems like there are many factors influencing it.

I live in Utah BTW, so the UV rays here are extremely harsh.
You really do have to experiment with your conditions to see what works. What works for one of use, may not work for you.

I grow in my house too, and I have found that even between my several south facing windows, there is a difference. So I have modified the plants I grow where etc. I also use some sheer window curtains to "soften" the intensity of the light when needed. That might help with your harsh UV rays issues.

Don't get frustrated -- the tinkering with conditions is just part of growing orchids.