"Ooh, gardenias; they are way at the top of my list for acquisition."
Most northern warms are too warm and too DRY over the winter, they HATE stuffy, indoor air..., aim for cool, fresh, moist, gentle breezes in filtered sun. That's sounds like where I'd like to hang out too. Seriously, with these, it actually a good thing to leave some water in its saucer after watering. They really resent dry soil conditions, not to mention their affinity for acid soils.