Penstemon consists of perennial or subshrub species that can be either deciduous or evergreen. They typically feature slender, elongated leaves and produce clusters of bell-shaped or funnel-shaped blooms during the summer and early fall.

Penstemon 'Purpurglocken'

Penstemon 'R.J. Mitchell'

Penstemon 'Rajah'

Penstemon 'Raspberries and Cream'

Penstemon 'Raspberry Ripple'

Penstemon 'Raspberry Ripple' (Ice Cream Series)

Penstemon 'Raven' is a semi-evergreen perennial that forms an upright clump, reaching up to 1 meter tall. It features narrow, ovate leaves and produces panicles of deep purple, bell-shaped flowers, each measuring approximately 4.5 cm in length. The flowers have a white throat adorned with deep red stripes.

Penstemon 'Raven' (Bird Series)

Penstemon 'Razzle Dazzle' is a bushy, semi-evergreen perennial that grows up to 90 cm in height. It features slender, dark green foliage and produces tubular flowers in a vibrant dark red hue with subtle stenciling during the summer and autumn months. This plant offers a lengthy blooming period, enhancing its appeal in the garden.

Penstemon 'Razzle Dazzle'

Penstemon 'Red Ace'

Penstemon 'Red Emperor'

Penstemon 'Red Knight'

Penstemon 'Red Riding Hood' features vibrant red blooms. This cultivar has a compact, low-growing form, typically reaching a height of around 60 cm.

Penstemon 'Red Riding Hood'PBR (Riding Hood Series)

Penstemon 'Red Scarlet'

Penstemon 'Red Sea'

Penstemon 'Rich Purple'

Penstemon 'Rich Ruby' is a robust semi-evergreen perennial that reaches heights of up to 90 cm. It features slender foliage and purplish stems, which produce deep red, bell-shaped blooms from mid-summer through early autumn.

Penstemon 'Rich Ruby'

Penstemon 'Ridgeway Red' is a robust, semi-evergreen perennial that develops clumps of narrow, green leaves. From early summer until mid-autumn, it produces elongated spikes adorned with tubular, vivid rose-red blooms that last throughout the season. This cultivar has been recognized as a finalist for the Plant Heritage Threatened Plant of the Year 2025.

Penstemon 'Ridgeway Red'

Penstemon 'Riding Hood Marbled Cream' (Riding Hood Series)

Penstemon 'Roger Skipper'

Penstemon 'Ron Sidwell'

Penstemon 'Rosy Blush'

Penstemon 'Rosy Morn'

Penstemon 'Roundhay'

Penstemon 'Rubicundus' is an upright semi-evergreen perennial that reaches up to 1 meter tall, featuring dark green leaves and sturdy stems. The flowers, measuring approximately 5 cm across at the lobes, are a vivid crimson, accented by a distinctive white throat.

Penstemon 'Rubicundus'

Penstemon 'Ruby Candle'

Penstemon 'Ruby Field'

Penstemon 'Ruby Gem'

Penstemon 'Ruby Wine'

Penstemon 'Ruby' Bloom

Penstemon 'Ruby' Forbes

Penstemon 'Russian River' is a compact, semi-evergreen perennial characterized by its glossy green foliage. Throughout the summer and into autumn, it produces elongated stems adorned with deep purple, trumpet-shaped blooms.

Penstemon 'Russian River'

Penstemon 'Samsong'

Penstemon 'Santa Catarina'

Penstemon 'Sapphire'

Penstemon 'Scarlet 'n' White'

Penstemon 'Scarlet Fire'

Penstemon 'Scarlet'

Penstemon 'Scharlachkönigin' is a multi-stemmed evergreen perennial that reaches a height of approximately 80 cm. It features narrow, mid-green foliage. From summer into autumn, it produces abundant tubular flowers in a vibrant scarlet hue, each adorned with white throats and red markings.

Penstemon 'Scharlachkönigin'

Penstemon 'Schoenholzeri' is a perennial that reaches heights of up to 80 cm. It features slender leaves and produces clusters of tubular, bell-shaped flowers measuring 3.5 cm across, with a red and white striped pattern in the throat.

Penstemon 'Schoenholzeri'

Penstemon 'Shell Pink'

Penstemon 'Sherbourne Blue'

Penstemon 'Shock Wave'

Penstemon 'Shot Silk'

Penstemon 'Shrawley'

Penstemon 'Six Hills Hybrid'

Penstemon 'Six Hills' is a robust evergreen perennial characterized by its oval green leaves, which feature serrated red margins. From May to July, it produces upright spikes adorned with elongated, tubular flowers in a vivid pink hue. This plant is well-suited for alpine or rock gardens, as well as for planting in pots and containers.

Plant Directory