I kept these closer to my swamp cooler - which I'm running in the winter to help with humidity. My greenhouse is kept 63 F at night - in the center of the greenhouse where thermostat gets its reading. Part of the greenhouse, especially along the wall - maybe cooler.
Really cool. My A. monticola did so well for quite awhile, even managed to bloom, but then it took a sudden and unexplained down turn from which it doesn't seem to want to recover.