Hi. First time posting, so thanks in advance for any suggestions. I have a well-drained bed that gets morning sun. It is somewhat shaded by adjacent cedars, and the area I would like suggestions about is under a pink dogwood. I have some empty space (horrors!) and would like suggestions for a low-growing perennial that would either havedecorative foliage, or flower throughout the summer. Other plants in the same bed are some hostas, flower carpet roses, and decorative grasses, and there is a PG hydrangea and some Japanese maples nearby that are doing very well. There is a built-in sprinkler system for the area, and I am looking for something that will do nicely without daily attention. Thank you!