Thanks for the question. The groundcover between the steppers is Chondrus crispus (Irish Moss). The large yellow leaves with green edges are Hosta 'Gold Standard'. The sharper leaves in the bottom right corner are Anemone. The silvery fern is Athyrium niponicum 'Pictum' (Japanese Painted Fern). The shrub with white leaves in the middle left is Cornus 'Ivory Halo' (Red Twig Dogwood). Across the path to the right, with the silvery blue green leaves is Fothergilla 'Blue Shadow'. On either side of that shrubs, the grass with the yellow blades is Hakonechloa 'Aureola'. Behind that with the maroon leaves is a Crimson Queen Japanese Maple.

beautiful work.