Scarlet red tubular blooms clothe the tall stems of this outstanding hardy perennial over an exceptionally long period from early summer to autumn penstemon garnet is a superb variety with a vigorous habit that will soon form large clumps of glossy evergreen foliagethese classic cottage garden plants are perfect for adding a touch of class to well drained borders and patio containers height 120cm 40483441 spread 60cm 402441