[Bruno]

Venus fly-trap nothing, regular old inanimate rose bushes are bad enough! Giant animate rose bushes would be a nightmare...

We had an early-generation "Ottawa Hardy Rose" bush. It never flowered, but it produced a bumper crop of huge thorns that it used to crawl all over the rest of the garden and suffocate it. We had to hack it back to the ground every fall to give the other plants half a chance. Nothing stopped it from reaching a branch out and grabbing at me when I was mowing the lawn, and that thing was (ostensibly) immobile.