An unhappy or inadvertent experience with a native plant is not reason to cloud the issue of invasiveness. It may not please everyone to read disagreement here, but this is important and should not be confusing to anyone.
If a Black-eyed Susan prevented the growth of other plants in its environment by some physical change it wrought by the way it grows (chemical release, abnormal usurpation of minerals upsetting soil nutrient balance, etc.) then one would be welcome to call it invasive. That is the meaning of the word. Using it differently doesn't change that. Black-eyed Susan does NOT do that in its native environment.
Any plant that seeds itself around prolifically may be termed aggressive, weedy, and maybe even $@#&%@#$&@!!!! If it just annoys the gardener because there are a bunch of them, but does not in and of itself prevent the growth of plants around it, it is not and cannot properly be termed invasive. With some research, one will find that Black-eyed Susan and similar prolific seeders are generally pioneer species in their natural systems. They occupy disturbed areas quickly, but pass on during succession giving way to other species as a plant community advances toward a stable climax community. Disturb the area again, and they will be right back - starting the cycle again.
Many landscapes (gardens) that humans create are the epitome of disturbance, and pioneer species thrive there. Know thy plants, and ease your gardening efforts. I suspect terrestrial orchids, Viburnum molle, Malus ioensis, and Quercus acerifolia will never become pestiferous despite one's best efforts - though they all can produce copious seed.
One can make up many names for it, just because one wants to. It will still be a Black-eyed Susan. And for one, I'm sorry that anyone has chosen to refuse to grow native plants. Local fauna is the lesser for it.
If one is gardening in South Carolina and interested in supporting a healthy and diverse native bee population, do a little research on what plants the local bee populations evolved with. I think you will find an amazing array of native and introduced species that are not invasive with which to populate your garden and landscape. The number, quality, and array of pollinators will skyrocket. Doing a little more to provide homes/habitat, and those same pollinators will become permanent residents.
There's plenty of online information, both for learning about native species and understanding invasive exotic species. If you like holding a book in your hand, you could do worse than pick up one of several authored by Doug Tallamy. A website that speaks directly to those interested in bees is sponsored by a company called Osmia, which is also a genus of bees. Read about BOB, the Blue Orchard Bee. They sponsored a great series of webinars over the last year or two, and provide excellent educational opportunities for those who wish to support native pollinators.
Reduce and exclude systemic insecticides and mistimed applications, and you'll do most good for beneficial insects.
Kind of got off topic! But the wine (Carmenere) and olives (Moroccan) were nice...
