And - I hate to sound like a broken record, but I know the 12 foot ceiling helped moving the hot air in Summer away from the "regular/normal" growth which happened at a much lower level in the lady's set up. I seemed to remember her mentioning that specifically. The ceiling may have been sloped down from that height, but I don't know that for sure. Anyway....
Melanie, so this is still a relatively new plant for you. Look forwards to nice clusters of these pretty blooms!