The leaf sure looks Bridal wreath spirea to me. Since you know it is not going to 'do anything' where it is I would dig as big a root ball as possible and move it to where it gets some sun at least part of the day.

I think I'm going to try to move it. Don't know if it will ever fill out on the "sick side" and shape up nicely, but it's sure never going to do so where it is. Will likely just die a slow death over years there. Wonder why it was planted there. Those 3 oak trees on the corner surely have shaded that bed for ages. But at one time, there may have been a little more sun there than at present. Thanks for your advice, Rosalee.

I have a friend that has grown it for years under the partial shade of oak trees where it gets a little morning sun. As you say perhaps it had more sun there when it was planted.

I thinhk I'll take some hardwood and softwood cuttings and see what happens with some rooting powder. Can't hurt and I might just end up with some new Bridal's Wreath should this one die on me before I can move it. I may at least hold off on moving until I see what success I have with some cuttings.