That is lovely Paul. I agree with Debra about the different textures, shapes, and shades of green, with the standout being the beautiful little white flowers.
Spring, the white flowered plant is Rosularia sedoides 'Alba'.
Rosularia (Rosularia sedoides)
This will be my first winter with this new plant. I am keeping it on my covered deck over the winter. It say it is hardy to zone 5, but needs protection from winter rains.
I got it this summer. 
That would be great. That looks like a fun site. Fred Meyer had those large troff plants on sale for half price today. More room for semps.
