Like this look for one of the border gardens - Golden Japanese Forest grass Hakonechloa macra 'Aureola' Perfect dripping over the edge of the rocks along the creek (wet and shady but the sun and a dry spell wont hurt a bit.
Golden Japanese Forest Grass - I really cannot get over Japanese Forest Grass (Hakonechloa macra 'Aureola', zones 5 to My favorite is the variegated variety. I planted mine under a Japanese maple, and the contrast was genius and it has so much movement.
Candytuft (Iberis Sempervirens) is incredibly floriferous. Rewarding spring flowering plant with a creeping habit. It flowers in great abundance covering the ground with a carpet of white flower clusters. Stays green during winter.