Gorgeous.
Sounds like you want flowers. Or would gold or variegated foliage work?
I am thinking something with grasslike foliage would be nice contrast, Siberian Iris? Spring bloom, compact plant that won't need dividing like standard germanica Iris,and grasslike foliage that stays decent looking through summer.
True geraniums are great too. But i'd like to get you something other than another mounded low plant.
