It's taken a while for Penstemon 'Raven' to push up a wonderful flower stem worth photographing. I can see now why it is called Raven as the flowers are quite dark red. It's a very healthy plant, just like the other Penstemons that I planted in spring and hopefully it will flower more prolifically next year.
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| Penstemon 'Raven' |
The label says that Penstemon 'Raven' (which has received the Royal Horticultural Society Award of Garden Merit) is a semi-evergreen, frost-hardy perennial with neat, narrow, mid-green foliage and stems of dusky purple tubular flowers. It grows best on sheltered, sunny sites in well-drained soil or compost. It flowers summer to early autumn and achieves a height of 75cm (30in) and spread of 40cm (16in).