I think they'll be very effective though. Think I get it ( duh) poisonous plants??
Well not really, but yes, at the same time! The Poisonous Plant is the whispering in the ear; plant = gossip basically. But the model (and it's the same person twice, as sometimes you tell yourself lies, which equals paranoia) is surrounded by plants mostly poisonous, and the area under the feet will be dead foliage.