DLDream, I've had the trumpet vine for several years and it has literally done nothing. A bit of mostly sideways growth (didn't want to climb up the pole I had it planted next to) and no blooms. It had morning sun, afternoon shade. I figure it must have wanted more sun and was planning to move it. Sounds like I may be better off to just let it die a natural death (or keep digging it up if it continues to resurface). Thanks for the insight, I'll look for something better behaved.