5 years to reach maturity
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Rock Penstemon Overview
Penstemon rupicola is an evergreen subshrub species from the Plantaginaceae family. It is found growing naturally from Washington to Northern California and doesn't typically exceed 10cm in height, spreading with a creeping habit to cover the ground. Leaves are small and rounded, flowers 2-lipped and coloured rose-pink, they measure around 3cm long and appear from late spring. Commonly known by the names Rock Penstemon and Cliff Beardtongue, this plant is adapted to rocky environments and it grows with a dwarfed habit, making it an excellent choice for a rock garden. This species has earnt a Royal Horticultural Society (RHS) Award of Garden Merit. It is also part of the RHS “Plants for Pollinators” initiative to showcase plants which support pollinator populations by providing ample amounts of nectar and/ or pollen. A great choice for encouraging pollinating insect wildlife into your garden!
How to propagate Rock Penstemon
Softwood or semi-ripe cuttings of non-flowering shoots in mid-summer. Propagate cultivars by cuttings.
Special features of Rock Penstemon
Attracts useful insects
Other uses of Rock Penstemon
Rock garden, cutting bed, border, flower arranging Suitable for coastal conditions.