You won't find the wallflower (Latin name: teenagerus nonparticipatus) in an issue of Better Homes & Gardens. On account of it not being a real flower and all. But if it were, it would probably be a plant Nancy Botwin would grow (illegally), not something you would just pick up at your local garden center.
We're basing this faux horticultural analysis on Charlie's life in The Perks of Being a Wallflower. He doesn't watch a lot of TV, so the whole "Just Say No" campaign clearly never sank in. Like a flower soaking in nutrients from the water it receives, Charlie will take whatever his friends (or complete strangers) give to him—cigarettes, booze, pot, LSD, you name it. The consequences? Not so great.