I can sure see it being a water hog in Tarev's dry conditions. But, as you say Lin they are very easy care for me, so it must be the humidity.
Mine are in a window box outside my bedroom patio door, just finished blooming, and I never give them a thought. They get a light watering from the irrigation system a couple of times a week, and light rain if it rains since they are under the overhang.
