Okay, I really admit it this time, the only flowers I can really maintain are those low-maintenance cactus, which I have one on my desk right now. (and it’s still ALIVE!)
For those of you who have hard time maintaining a “real” garden, you might want to try the alternatives (like me cactus) or learn how to make a steel flower. Make sure you put some anti-rust coating so your flower will be maintenance-free even if it rains.