Penstemon x 'Onyx and Pearls' (PP 32613) ONYX AND PEARLS BEARDTONGUE

Zone: 3-8  Height: 42 in.
Named for gemstones with opposite colors, the onyx references the dark purple foliage with pearls references the soft lavender flowers with white centers. Upright habit, early summer bloomer. Taller and fuller than P. Blackbeard.
 
Photo Credit: www.waltersgardens.com