Penstemon ‘Sour Grapes’ – 2Ltr

Penstemon ‘Sour Grapes’ is an elegant, long-flowering perennial with tubular magenta-blue to violet flowers that have a distinctive metallic sheen. It forms a leafy upright clump and is ideal for adding rich colour to sunny or lightly shaded borders from midsummer into autumn.

Why we like it

• Distinctive magenta-blue flowers with a metallic sheen
• Long flowering period from summer into autumn
• Excellent for cottage gardens and mixed borders

What to know

• Grow in full sun or partial shade.
• Plant in fertile, well-drained soil.
• Deadhead regularly to encourage continued flowering.
• Avoid cutting hard back in autumn; prune in spring when new growth appears.
• Mulch around the base in colder areas to protect the crown.

Flower colour
Magenta-blue to violet

Flowering months
July, August, September, October

Height and Spread
Approximately 60 cm 45 cm