think about the massive diversity of plant growth in their natural habitat, also too, just because its safe for a chameleon captive habitat, does not mean whatsoever they're going to munch away at it. example, i just put a boston fern in my enclosure to fill some space, its a subtropical plant, and was listed as a safe plant. my cham has roamed almost every squared inch of the enclosure and has eaten her hibiscus regularly and a couple nibs at her schefflera. she was climbing on the ferns and had no interest at all about it. same with orchids, i have an orchid that i put in that was transfered from her old cage, and not even a nible, shes had that flower for the last 2 weeks