the pic with the skunks in it? that is sedum, it should be as big as the one behind the yucca in the second pic, but the dog keeps knocking it down. I also have a white bleeding heart right behind the little skunk on the left rock and the dog keeps that one knocked down also.
The plants in the rock garden are, cactus, honeysuckle, sedum, yucca, russian sage, day lily, coral bells, minature rose bush, white bleeding heart, and the big shrubs are rose of sharon.