The lack of a Ruellia humilis page is one of several things that threw me off when trying to ID this. Thank you for submitting a proposal to create one.
Your Ruellia has a nice color. Purple is my favorite.
Your Cashmere Bouquet sounds as bad as my Creeping Charlie. I was so distraught when I found it in my prairie patch. I hope the natives can snuff that one out, but I am not sure. That first planting was done differently than we would probably do for our other areas. It was all exposed soil from some construction work we had done, so wide open for every good and bad seed out there. I am grateful for every native plant back there.
This last year, we read you can actually seed over existing growth and in time the native plants will take over. Our pasture is largely brome grass. Way in the north part, some Asters, Hoary Vervain, Milkweed have popped up. Oh, I like that purple of the Asters! We didn't plant those, so that is a real treat. We learned that a neighbor to the north had planted some native seeds in the back portion of his property, so I suspect some has drifted our way.
