possible plantings around 'flume'

Considering the possibility of using the sculptural stone intervention at 74th Street as an opportunity to plant some native vegetation typical of the Garry Oak habitat.

Here's some possibilities I'm thinking about...

Symphoricarpos albus (Common Snowberry)

Carex inops (Long-stolon Sedge)

Camassia quamash (Common Camas)

Thinking the Camas is particularly appropriate with blue/violet color tie-in to overall themes of the project.  Refer also to earlier musings on blue native plant possibilities.  

Could envision these serving as a sort of natural blooming frame for the large stones.