A favourite cottage garden plant since Victorian times, Penstemons have large bell-shaped flowers in tapering spires on mid-height stems, rather like a smaller version of the foxglove. Let it grow up through other plants in the border, which act as supports to this sometimes rangy plant. These vigorous perennials, which flower from July to October, if deadheaded regularly, are drought tolerant and fairly hardy.
Penstemon Sour Grapes is a compact and bushy variety with large, deep magenta flowers that fade to pale blue/mauve in the sun. The flowers have an unusual sheen, like that of black grapes, hence the name. It will benefit from regular picking. Its large, lance-shaped leaves are a bright green and semi-evergreen. Pair with deep purples and blues, or try planting with architectural grasses or rich-coloured sedums for an impressive garden display.
A recipient of the RHS AGM (Award of Garden Merit), for all round excellence in the garden.
Pot Size: 3L
: Borderline hardy (may need winter protection in cold areas)
Height and Spread: 60cm x 45cm
Preferred Soil Type: Well drained, light
Aspect: Full sun / partial shade
Flowering Period: July – October