Penstemon Sour Grapes
This easy-to-grow perennial will quickly form large, leafy clumps and is perfect for adding a splash of colour to the middle of a sunny, well-drained border.
If deadheaded, the flowers will persist until the first frosts. The flowers of this penstemon can vary in colour (from magenta- violet with purple undertones, to soft violet-blue
Flowering: July - Oct Ht: 60cm