Licorice, Zinnia and Verbena

I came across this plant and flower combination at the base of a tree along the sidewalk of a shopping mall. I love the contrasting colors and textures:

The trailing silver/green foliage of the Licorice Plant (Helichrysum petiolare) at the base makes a great groundcover. The middle layer is filled with Zinnia augustifolia in a brilliant reddish-orange flower color. The innermost layer is filled with the tall and wispy Purpletop verbena (Verbena bonariensis). All three of these have very different foliages, flowers and habits, yet they all seem to compliment each other as well. In addition, these three thrive in ordinary soil and full sun, which is why they look so great in this parking lot!