Suggestions for front of border
I recently expanded a flower bed in my front yard to about 3 times the previous size. The bed has a free-form fieldstone border, roughly 8 inches or so above the height of the lawn. The area is shaded in morning and late afternoon, but receives probably 5-6 hours of sun mid-day. This is probably the sunniest spot in my yard! I have planted hydrangeas in the center of the bed and surrounded them with heuchera of different colors. Our soil is very sandy but we hauled in 3 yards of black dirt that seemed to have a lot of clay mixed in.
I am looking for suggestions as to what to plant around the outside edges of the bed. I am drawing a complete blank. Ideally I would like something fairly low growing (under 8 inches or so?) that flowers for a long time, or something with interesting foliage, or maybe a combination of the two. Something that creeps or cascades over the rocks might look nice too, as long as it doesn't invade the lawn.
Any suggestions would be appreciated.