Penstemon digitalis ‘Onyx and Pearls’ – Foxglove Beardtongue

From Missouri Botanical Garden:

‘Onyx and Pearls’ is a cold-hardy, dark-leaved selection of foxglove beardtongue that features pale purple to nearly white blooms on upright flowering stalks. Mature clumps will reach up to 3.5′ tall with a similar spread. The tubular flowers are held on terminal, branched panicles above the dark purple foliage. This cultivar was selected from second generation, self-crossed seedlings of Penstemon digitalis ‘Pocahontas’.