How low of a temperature can these houseplants survive?
We have an addition above our garage that we use mainly for storage right now, and to save on heating we hang a heavy curtain in the stairway and turn down the thermostat upstairs to 50F to prevent the pipes from freezing.
Recently, a family member has moved in with us and her collection of houseplants easily matches mine. I'd love to move some of them upstairs, since it gets gobs of sunlight from the south-facing windows. The plants I'm hoping to move are pothos vines, rubber trees, ZZ plants, ficus, mother-in-law's tongue, umbrella trees, and dracenea. Can any of these handle a winter of 50F?