I know it doesn't look like it, but, these plants are potential killers. The passion vine leaves and fruit are delicacies for gulf fritillary caterpillars who gorge themselves and then die. Of course, they emerge later as butterflies, but, that's beside the point. The red tropical sage blooms draw hummingbirds who become so engrossed in the flowers that they don't notice the cats stalking them. I haven't seen a cat catch a hummingbird yet, but, it could happen.