Penstemon ‘Blackbird’ is one of the darkest flowered penstemon, with clusters of large, trumpet-shaped blooms held on strong stems above semi-evergreen foliage from May to October, sometimes longer. Each tubular bloom is accented by a white interior – which acts as a beacon to draw in multitudes of pollinators.If you only have space for one plant in your garden, we believe a penstemon is a good choice, bringing you colour for up to six months of the year and aiding your garden’s transition between summer and autumn. These are the insomniac party lovers of the plant world - summer arrives and your penstemon starts flowering, summer ends and they are still blooming, autumn comes around and they still show no signs of tiring. Tell them the party is over and they will just laugh - these sturdy plants carry on flowering, oblivious to drought or heavy rain. Plant in well-drained soil of any kind and position in sun or partial shade. Hardy perennials which should not require additional winter protection and reach a height of around 60-90cm, spreading to between 45-60cm.
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