Penstemon heterophyllus ‘Margarita Bop’ is a nice tidy perennial that looks like candy tuft or a boxwood when not in flower, and a mass of bright sky blue to reddish purple flowers when in bloom.   Flowers begin to bloom in late spring and early summer.

 Care: needs only occasional watering, partial to full sun.

 Uses: Borders, Containers, Rock Gardens

 Zone: 6-9

 Height: 18-24 in