Penstemons have a foxglove type appearance. They are extremely long lasting and will flower late in to the summer. Happy in most gardens, they are ideal for the middle of the border. Their pretty colours and elegant habit allow penstemons to blend seamlessly into your herbaceous borders however recently planted.
Try planting with Rudbeckia, Echinacea, Campanulas, Nepeta, and Verbena or Euphorbia. Their dark forms also look good woven through soft, flowing grasses