When I can, I have houseplants. I'm an apartment dweller, and most of my apartments haven't had outside space that got sun.
I expect to be moving again next month, so we'll see what kind of apartment I can find. I would dearly love to do some container gardening - but vegetables, not flowers.
If I ever, ever get a chance to have my own house, I will have lilac and peony bushes, and ground flowers such as narcissus, tulips, irises, etc. <sigh>