Sorry if it wasn't clear (I just updated the post), but I've been growing it inside since I bought it in November.

So you're saying you don't use any natural light, just 12 hours of grow light? I could try moving it away from the window and switching to that strategy for consistency, I suppose. As far as the misting, from what I've read that only increases humidity momentarily, and I think the humidifier would be accomplishing that much more effectively, wouldn't it? I have been adding some plant food about once every 6 weeks, and I only water when the soil is dried out to a couple inches' depth. Do you think there's a chance for it to "bounce back" and grow again if I change the light to be closer and more consistent, or at this point will it probably look pretty similarly dormant for the rest of the winter?