 | Husker Red Penstemon. Penstemon Husker Red (Penstemon digitalis 'Husker Red') is one of the most popular members of the Penstemon family! It even won Perennial of the Year! The colorful tubular bell-shaped flowers attract butterflies and hummingbirds in droves. The flowers range from pure white to a lovely pale pink, both of which contrast nicely with the maroon-tinged stems and leaves which give this plant its name! Even after the spring-early summer flowers fade, the foliage stays lush through summer's heat. Beardtongue... - Husker Red Penstemon. |