oooh that is very beautiful! I love the violet flowers between those rocks!
(mine are pink and I have a pale-something-approching violet just barely and I am jealous--I have never seen the Cymbalaria pallida and I would very much like to find some of that!!)
this was one of my suggestions above for shade tolerant clumping creepers...
Mine don't crawl all over and between everything though I wish they would.
