mountain treasure

Hello All I am new to both Daves Garden and Brugmansias but have recently been bitten by the brug bug and bought several off of ebay my question is a mountain treasure plant i bought has bloomed white is this how they start or is it because it is inside under lights untill spring etc etc etc
Thanks any advice anyone has will be greatly apreciated .

Mine bloomed white the first day, late. Around six PM. By dark, they were always pink. The next day they would get darker. I'm sure that you are warmer than we are in Iowa and my last bloom flush bloomed just as pink as ever. I can't tell you what it would do under lights, but I'd say it would at least have some color by the second day.

Thanks