I don't do well with houseplants - I am terrible about neglecting their water needs and most of them die off eventually. However, I can't seem to pass up new purchases despite my track record. I bought an oleander from the Dutch Plant Farm rehab table really cheap at the end of last winter, and a not cheap at all meyer lemon tree from another nursery around the same time. I brought them outside as soon as the temps stayed above freezing. Both are alive and thriving since they weren't subjected to my neglect inside. The oleander has been blooming all summer and the lemon tree has lemons that are starting to get big (not ripe yet though). I've been treating my amaryllis the same as Cat by keeping them outside on the northern exposure front porch steps. They started regrowing leaves early on in the spring and half of them re-bloomed in early June. So, bottom line - yes, any houseplants that I manage to keep alive through a winter season from here on out will be moved outside for the summer