on the time outdise, Ken. The oak trees drop stuff all the time, and that augments the feeding you give them.
Mine are outside year 'round, on or in the ground, and a few in pots that get moved around when they are in bloom so I can show them off. I rarely fertilize them, except if I am walking by with a little orchid fert in the sprayer, they get a spritz. They all bloom on their own schedule, some once a year, some twice. But Cheryl, I did notice that it took 2 years for a bloom to come when starting from a 'pup' that had been separated from a mother clump.
I would definitely put them outside under a tree, and just make sure they're not getting watered too much. At this time of year, if the nights are cool that might stimulate them to bloom, too. Indoors, the temperature doesn't fluctuate enough to simulate seasons for them.
