Purchased two potted indoor Azelea's (called "Rozelea" at Home Depot). Heavily flowered and looking great. Brought them to my office until I could sneak them home for my wife. Put them in a sunny south side window. Watered as I thought I should, and when I got in today, the flowers on one are wilted while the second is on its way. See photo. What the h*** am I doing wrong? Too much water? Not enough? They are not standing in any water. (Easily removed from their plastic home depot pots). All help is appreciated.