Not in bloom yet. Yes, I water them more frequently, have them in a separate garden from the bearded, and since they are heavy feeders I fertilize them more often too. And Lucy is correct - they love acid soil. My only problem is I don't think they get enough sun. Need to do some tree trimming.
I have some more on order too that I am going to grow in pots, much like they are commonly grown in Japan. I want to see if I get better output in the pots.