The Flowers are taking over

Remember those flowers we planted for FHE one night? Before we left for Utah I watered them really well, and then placed them in a tray so they could drain and then suck the water back up if needs be. Well they did really well while we were gone, a little to well. Have you ever scene paper whites get this big before? They are so big they can't all stand up on their own. They are also so big I couldn't get them all in the photo's. They were so great to watch grow but now they are a little bit of a nusence. I have no idea why they did so well. Nothing I have tried to grow thus far stays alive, however the plants that I neglected are still alive.