Penstemon 'Sour Grapes'

The colour of the two-lipped tubular flowers are an intriguing blend of purples and blues; the pure white throat has streaks of purple. 'Sour Grapes' buds are appropriately held in bunches. Luscious green lance-shaped foliage covers the upright stems which bear stunning blooms throughout the summer. 

Penstemon perform at their best when planted in full sun or dappled shade. They favour a fertile, well-drained but moisture-retentive soil. Softwood cuttings can be taken during early spring. Ensure that you cut back this Penstemon after the last of the spring frosts.

H4 - Hardy through most of the UK (-10 to -5)