Schefellera are on a list I've seen that lists them as a poisonous houseplant, however, they are on several chameleon safe plant lists I've seen as well. My Schefelleras in my Veiled cages all have perfect little v-shaped bite marks on the leaves. I never see them actually eating them, but it is obvious that they are munching them from time to time. I've yet to observe any odd behavious or concerns associated with them eating them so it's hard to say. Based on my own observations, I would think they are O.K.