Thank you so much, Neil, your native plants are very attractive! Perhaps you may know of the well known Dutch landscape gardener, Piet Oudolf,that has designed and help develop "wild " gardens for the Millenium Lurie gardens in Chicago , also for the N. Y.Botannical gardens. He extensively used American wild native plants for his stunningly beautiful gardens. He says that gardens could easily do well with American natives because of their diversity and ornamental value. Your specific Verbascum is an annual or short lived perennial ?. Here I keep self sown Verbascum thapsus that shows up here and there, and grows enormous stately spikes, It is an introduced species that grows along road banks in very unfavorable conditions and yet very ornamental. I think it is also known as Indian Tobacco.
Your pic defintely urged me to inquire more, although I didn't stop to pay my attention to the photograph which is also very beautiful. I just went straight inside the picture roaming inside the bed! I love watching what others do with plants even more that pic itself.
again Arturo