Excellent example of how to pair repetition (purple catmint and orange sedge grass in the foreground) with diversity- many of the plants are only used once. To make the onesies fit in, use different plants of the same color.
Potted in purples.love this row of purple pots with all shades of purple flowers. What about potting a variety of flowers in pots the color of the flower. It would look great on a deck! Love the purple!