To Butterly Bush or to Not Butterfly Bush (Or to Native or Not to Native)

No other plant seems to get people's engines revving more than butterfly bush. I mean heated arguments -- I've been in my fair share. Is it invasive or not? Well, Oregon doesn't let it into the state, and the USDA says it's naturalized on both coasts, and even in parts of eastern Kansas.



But that's not the core issue.



Does it support lots of insects by providing good nectar? If one person sees one monarch nectarting on it one day, it's always assumed to be a good plant to help butterflies....