Purple-blue tubular flowers with a metallic sheen and patches of white in the throat. Semi-evergreen in milder areas. Protect from hard frosts. Take cuttings in late summer as a back-up. To 60cm.
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Penstemon 'Sour Grapes' (Syn. Stapleford Gem): Purple-blue tubular flowers with a metallic sheen and patches of white in the throat. Protect from hard frosts. To 60cm.