Some 40 years ago, Dr. Dale Lindgren, plant breeder at the University of Nebraska released ‘Husker Red’ penstemon (Penstemon digitalis). This pioneering variety has purple-green foliage and white flowers. New penstemon varieties continue through the breeding pipeline with larger and colorful blooms, more compact habit, or dark foliage. (Z 3-8). Penstemons (Beardstongue) belong to the […]