I had mine for years with no blooms till I was told to put them in full sun outside for the summer. In fall, I bring them to my barn porch which has doors I can shut over night on frosty nights but isn't heated. In the day they get north light. I leave them there till November. This is when they spike. So fun! Then in Nov they go into a cool room 50 degrees minimum with north light till the next June 1 and they bloom during the winter. I don't think the light is enough though, since I had some strange shaped flowers on the later ones to bloom.
