Syd, it was for about three months in the middle of the winter before I got my humidifier. *Even at night the humidity only went up to the low 40's. *I tell ya, some of these suckers are a lot tougher than we give them credit for....though I don't purposefully go around trying to proove it....I just seem to be absent minded enough to occaisonally test the fortitude of one plant or another.