I just posted these photos on another thread, but I saw this and decided to post them here as well.
The only place I have good luck with cephs is in the public CP house. I think its becuase the humidity is high and the temps at night drop about 15 degrees lower then the daytime temps. I think this temperature drop is very inportant.
Here is the biggest plant, its in an 8" pot.
Its also flowering right now...
I have killed my share of Cephs, and I can't grow them very well in the production houses. I think the key is high humidity and the night time drop in temps.
Grand Rapids, MI