Talk About Invasives.
I was at Lowe's today (buying BlackKow), an noticed they had Texas Evening Primrose for sale. Goodness! I have been fighting that for months. It is an insidious growing with all the roots it sends out underground. Pretty pink booms, no doubt, but not worth having a mat of it in every inch of your yard. Besides, if you want it, you can dig it up along any road (or pig trail) in the area.