I have a bunch of different kinds of airplants in my bathroom in the south side window. They do not get direct light and have been growing for about 8 months now. None of them have flowered except one is coming out now extremely slow. I am worried because winter is here and they are getting less light. I think the color in some of my stringy net-like air plants is fading and getting dull almost like its losing its life. I try to water them 3 to 4 times a week with RODI water by spraying them thoroughly with a spray bottle.
Do my airplants need supplemental lighting? If so does the bathroom bulb about 4 feet away that is 57watts do anything? Also, what is the main cause for airplanes to flower? I am wondering if it is a combination of the right conditions and they haven't been met or am I missing light or heat? I know it may be hard to tell. Any help is appreciated. Thank you.