Penstemons generally have tubular flowers that flare out at the end. They are undemanding and the foliage looks nice from the beginning of the growing season to the end. Many penstemons are not hardy in our Zone 4 garden. Fortunately we have found some that are and will continue to try others.
PEHR P. digitalis 'Husker Red' - A jewel in our border all season. Foliage in early spring is deepest burgundy. As it grows to its 2½' height, the leaves become more green but newest leaves are burgundy. White tubular blooms with faintest hint of pink for 5-6 weeks starting in June. Moisture and maintenance requirements are low-our kind of plant. This plant always looks good! Introduced by the University of Nebraska and the 1996 Perennial Plant Association Plant of the Year. Spring or fall.