An example of a cultivar is Penstemon digitalis ‘Husker Red’ or Husker Red penstemon. ‘Husker Red’ was a particular selection of penstemon that was picked for its red foliage and white blooms.

An example of a cultivar is Penstemon digitalis ‘Husker Red’ or Husker Red penstemon. ‘Husker Red’ was a particular selection of penstemon that was picked for its red foliage and white blooms.

— Hyacinthus “Jan Bos” with Penstemon “Husker Red” — The emerging penstemon leaves are dark purple just as the hyacinth is blooming, creating a nice color scheme.