Penstemon is a herbaceous perennial that forms a tidy mound of mid-green foliage which is almost lost under the flowers at the height of its blooming.
The tubular flowers are carried on terminal spikes in shades of pink, crimson, red, purple and lavender, often with splashes of white.
They come in a variety of dimensions and make a strong impression in a mixed border.
One of the great mixed border flowers - perfect for an informal or cottage style garden.