I like Wild as a personality here - it's a term used to describe non-cultivated plants, can be used in the sense of 'Wild growth' - it sounds a bit more interesting and colourful here than Subservient. I'd like to see a personality that sounds like you're describing plants, even if it's an all-new, weird one.
Another thing worth mentioning is that, as written, they would still always make LEAs, so that could be construed as a theme-break if you're going for them only being animated by Ivy/Floronic and their animator is dead - I suppose you could explain it away by Batman being careless and cutting himself on thorns.
