Hi all, I just purchased a butterfly bush online (Clerodendrum ugandense), and after completing the purchase, I read that all parts of the plant are poisonous if ingested. I know that there are degrees to that--some plants can make you feel ill if you ingest them, while some can cause a much more serious reaction.f you got rid of all the plants that had toxic properties, your garden would practically be bare. This one has some toxic alkaloids, much like other members of the same family. I'd use it in your landscaping. As your child matures, I'll bet she won't begin grazing on the plants as a rite of passage.