Even with fake plants, Houdini manages to somehow destroy things. Whenever he gets a new decoration that is even remotely plant-like, he either curls up in the middle and squashes the whole thing flat or wraps himself around a stem and inches along it until it tips over and lands him on the floor of the tank. Not a problem when all you have to do is unbend the stems and place them back in there, but I don't know how long a real plant would last, even if you could get the humidity right