Hmmm...tall sedum. I've been wanting to try tall sedum anyway. And it might mix nicely in front of some dwarf, upright russian sage. I like that. I can imagine a wave of sedum splashed across The Mound.
Thanks for the tips on the mockorange. I have two but they are planted in my normal (heavily amended) garden beds. I've read that they can tolerate poor soil but I wasn't sure. I also like the idea that they have great autumn color.
