Penstemon 'Catherine de la Mare' is a named selection of Penstemon in the Plantaginaceae, valued for its summer display. As a member of the Penstemon genus it shares the group’s distinctive tubular, two-lipped flowers with a prominent sterile stamen (staminode). Flowering occurs from June to September. Identification in flower is helped by the often bearded palate and obvious staminode typical of beardtongues.

Penstemon 'Catherine de la Mare' is a Penstemon (Plantaginaceae) cultivar that flowers from June to September.

Penstemon 'Catherine de la Mare'

Beardtongue | Penstemon 'Catherine de la Mare'

Penstemon 'Gentianoides' of gardens is a perennial Penstemon in the Plantaginaceae, notable for a long flowering season from June to September. It forms a well-branched, upright plant with a semi-woody base and narrow, glossy mid to dark green leaves. Best grown in full sun on light, fertile, free-draining loam or sand. Winter wet is the common cause of losses, so choose a sheltered, south- or west-facing position where the soil is neutral to alkaline.

Penstemon 'Gentianoides' of gardens is a semi-evergreen perennial that flowers June to September and prefers full sun with free-draining, neutral to.

Penstemons carry spires of tubular, foxglove-like flowers with a distinctly lipped mouth, often marked with contrasting guide lines in the throat. They flower from midsummer until the first frosts, longer than almost anything else in the border, in shades from white and shell pink through coral and cherry to deep wine and violet. Growth is bushy and semi-woody at the base, clothed in narrow glossy leaves, and the border cultivars sit somewhere between a perennial and a small shrub in behaviour.

Penstemon 'Gentianoides' of gardens

Penstemon 'Raven' is a cultivated member of the Penstemon genus (family Plantaginaceae), noted for its two-lipped, tubular flowers and the prominent staminode — the characteristic 'beardtongue'. Flowering occurs from June to September. The flowers have petals fused into a tube with an open throat and a bearded palate, and the plants produce seed capsules following flowering.

Penstemon 'Raven' produces two-lipped tubular flowers from June to September.

Penstemon, the beardtongues, is a large genus of roughly 280 species of flowering plants native to North America from northern Canada to Central America. It is the largest genus of flowering plants endemic to North America.

Penstemon 'Raven'

Beardtongues | Penstemon 'Raven'

Penstemon 'Rubicunda' is a perennial in the Plantaginaceae with a well-branched, upright habit and a semi-woody base. It bears narrow, glossy mid to dark green leaves that remain semi‑evergreen in milder sites. The plant produces the genus-typical two-lipped, tubular flowers from June to September. Best grown in full sun on light, free-draining neutral to alkaline soils in a sheltered south or west-facing position.

Penstemon 'Rubicunda' is a sun-loving perennial with narrow glossy leaves and a long flowering season from June to September.

Penstemon 'Rubicunda'

Beardtongue | Penstemon 'Rubicunda'

Penstemon 'Sour Grapes' is a cultivar of Penstemon (family Plantaginaceae) distinguished by the genus's two-lipped, tubular flowers and the prominent sterile stamen or staminode. Each bloom shows the characteristic bearded palate that gives beardtongues their common name. Flowering in the UK runs from June to September. The flowering stems carry multiple blooms, making the staminode readily visible on each flower.

Penstemon 'Sour Grapes' is a Penstemon (Plantaginaceae) cultivar with two-lipped tubular flowers and a prominent staminode, flowering June to September.

Penstemon 'Sour Grapes'

Penstemon barbatus is a perennial with multi-stemmed, upright growth and semi-woody bases that produces spikes of tubular flowers from June to September. Leaves are narrow, glossy and mid to dark green and remain semi-evergreen in milder sites. It favours a south- or west-facing, sheltered position in light, free-draining soil. Winter waterlogged soil is the common cause of losses.

Bearded penstemon Penstemon barbatus flowers June to September and prefers full sun in free-draining, neutral to alkaline soil in a sheltered, south- or.

https://en.wikipedia.org/wiki/Penstemon_barbatus

Penstemon barbatus

Bearded penstemon | Penstemon barbatus

Penstemon barbatus 'Carnea' is a perennial penstemon with well-branched, upright stems and semi-woody growth at the base. It bears narrow, glossy mid to dark green leaves that are semi-evergreen or evergreen in mild sites. Flowering runs from June to September. Give a sunny, sheltered, south- or west-facing spot in light, free-draining soil.

Golden-beard Penstemon (Penstemon barbatus 'Carnea') is a full-sun perennial with narrow glossy leaves and summer flowering from June to September.

Penstemon barbatus 'Carnea'

Golden-beard Penstemon | Penstemon barbatus 'Carnea'

Penstemon barbatus var. torreyi is a perennial Penstemon with upright, multi-stemmed growth and a semi-woody base, notable for a long flowering season from June to September. The plant bears narrow, glossy leaves that are semi-evergreen in mild winters. It favours full sun on light, fertile, free-draining neutral to alkaline soils and a sheltered south- or west-facing aspect.

Bearded Penstemon Penstemon barbatus var. torreyi flowers June to September and favours full sun on light, free-draining neutral to alkaline soil in a.

Penstemon barbatus var. torreyi

Bearded penstemon | Penstemon barbatus var. torreyi

Penstemon campanulatus is a perennial in the Plantaginaceae with narrow, glossy, mid to dark green foliage and an upright, multi-stemmed habit with semi-woody lower shoots. It favours full sun on light, fertile, free-draining loam or sand and tolerates neutral to alkaline soils. Sit it on a south- or west-facing, sheltered spot because winter wet is the most frequent cause of loss. Flowering runs from June to September, extending summer interest in borders and containers.

Bellflower beardtongue (Penstemon campanulatus) is a semi-evergreen perennial from Mexico that flowers June to September in sunny, sheltered.

Penstemon campanulatus

Bellflower beardtongue | Penstemon campanulatus

Penstemon campanulatus 'Andenken an Hahn' is a perennial penstemon with a well-branched, upright habit and a semi-woody base. It bears narrow, glossy mid to dark green leaves that are semi-evergreen to evergreen. Flowering runs from June to September. Plant in full sun on light, fertile, free-draining loam or sand, in a south- or west-facing, sheltered spot.

Penstemon campanulatus 'Andenken an Hahn' prefers full sun in neutral to alkaline, free-draining soil and flowers June to September.

Penstemon campanulatus 'Andenken an Hahn'

Penstemon campanulatus 'Evelyn' is a perennial in the Plantaginaceae with an upright, well-branched habit and a semi-woody base. It bears narrow, glossy mid to dark green leaves that remain semi-evergreen to evergreen. Flowering runs from June to September. It prefers full sun on light, fertile, free‑draining loam or sand in neutral to alkaline soil, sited in a sheltered south- or west-facing position.

Penstemon campanulatus 'Evelyn' flowers from June to September and prefers full sun with light, free-draining neutral to alkaline soil in a sheltered.

Penstemon campanulatus 'Evelyn'

Beardtongue | Penstemon campanulatus 'Evelyn'

Penstemon campanulatus 'Garnet' is a perennial in the Plantaginaceae that offers an extended summer display from June to September. It grows upright and well-branched with a semi-woody base and narrow, glossy mid to dark green leaves that are semi-evergreen or evergreen in milder sites. Position it in full sun on a south- or west-facing, sheltered spot in light, fertile, free-draining loam or sand to avoid winter wet.

Penstemon campanulatus 'Garnet' flowers from June to September and suits sunny, sheltered, free-draining neutral to alkaline soils.

Penstemon campanulatus 'Garnet'

Penstemon campanulatus 'Hidcote Pink' is a well-branched, upright perennial with a semi-woody base and narrow, glossy mid to dark green leaves. It flowers from June to September and prefers full sun on light, fertile, free-draining loam or sand. Plant in a south- or west-facing, sheltered position and avoid winter-wet soils, the main cause of losses. Hardiness is H3–H5, so it suits much of the UK given good drainage and shelter.

Penstemon campanulatus 'Hidcote Pink' is a semi‑evergreen penstemon for full sun in light, free‑draining, neutral to alkaline soils, flowering June to.

Penstemon campanulatus 'Hidcote Pink'

Beardtongue | Penstemon campanulatus 'Hidcote Pink'

Penstemon campanulatus 'Pink Endurance' is a perennial in the Plantaginaceae with an upright, well-branched habit and semi-woody stems at the base. It carries narrow, glossy mid to dark green leaves that are semi-evergreen to evergreen. Flowering runs from June to September. Plant in full sun on light, fertile, free-draining loam or sand in a sheltered south- or west-facing position.

Penstemon campanulatus 'Pink Endurance' is a full-sun perennial with narrow glossy leaves and a long June to September flowering season.

Penstemon campanulatus 'Pink Endurance'

Beardtongue | Penstemon campanulatus 'Pink Endurance'

Penstemon confertus is a perennial with upright, well-branched stems and semi-woody bases, growing to about 0.6 m. From June to September it bears tiers of pale yellow to cream tubular flowers. Leaves are narrow, glossy and semi-evergreen. It prefers full sun on light, neutral to alkaline, free-draining soils.

Yellow penstemon (Penstemon confertus) bears pale yellow to cream tubular flowers from June to September and prefers a sunny, free-draining site.

https://en.wikipedia.org/wiki/Penstemon_confertus

Penstemon confertus

Yellow penstemon | Penstemon confertus

Penstemon cyananthus is a species of the genus Penstemon in the family Plantaginaceae, producing the tubular, two-lipped flowers and prominent staminode typical of the group. It flowers from June to September. Leaves are typically arranged opposite and the fruits are dry seed capsules. The sterile, often bearded staminode is a useful identification feature in the throat of the flower.

Penstemon cyananthus has the tubular, two-lipped flowers typical of penstemons and blooms from June to September.

Penstemon cyananthus

Penstemon gentianoides is a semi-woody perennial reaching about 1.5 metres with upright, well-branched stems. It carries narrow, glossy mid to dark green leaves that are semi-evergreen in mild winters. Flowering occurs from June to September on erect spikes of blue-violet blooms. It suits sunlit, sheltered positions where soils drain freely.

Gentian beardtongue (Penstemon gentianoides) is a semi-woody perennial to 1.5 metres with glossy narrow leaves and blue-violet flowers from June to.

https://en.wikipedia.org/wiki/Penstemon_gentianoides

Penstemon gentianoides

Gentian beardtongue | Penstemon gentianoides

Penstemon gloxinioides is a perennial in the Plantaginaceae with an upright, well-branched habit and stems that become semi-woody at the base. It carries narrow, glossy leaves that are semi-evergreen to evergreen and flowers from June to September. Plant in full sun on light, fertile, free-draining loam or sand with a neutral to alkaline pH. Avoid winter-wet situations, as prolonged dampness at the roots is the main cause of failure.

Penstemon gloxinioides is a sun-loving perennial with narrow glossy leaves that flowers June to September and prefers light, free-draining neutral to.

Penstemon gloxinioides

Beardtongue | Penstemon gloxinioides

Penstemon gloxinioides 'Schoenholzeri' is a perennial in the family Plantaginaceae that flowers from June to September. It forms an upright, well-branched habit with a semi-woody base and narrow, glossy mid to dark green leaves that remain semi-evergreen or evergreen in milder sites. Give it a sunny, sheltered position on free-draining soil to avoid winter losses. It favours neutral to alkaline conditions and shows its best flowering on south- or west-facing sites.

Penstemon gloxinioides 'Schoenholzeri' is a full-sun perennial with glossy narrow leaves that flowers June to September in neutral to alkaline.

Penstemon gloxinioides 'Schoenholzeri'

Penstemon gloxinioides 'Sour Grapes' is a perennial penstemon forming upright, well-branched growth with a semi-woody base. It carries narrow, glossy mid to dark green leaves that remain semi-evergreen in mild winters. Flowering runs from June to September. Position it in full sun on light, fertile, free-draining soil and protect from winter wet.

Penstemon gloxinioides 'Sour Grapes' flowers from June to September and prefers full sun, light free-draining neutral to alkaline soil in a sheltered.

Penstemon gloxinioides 'Sour Grapes'

Beardtongue | Penstemon gloxinioides 'Sour Grapes'

Penstemon gloxinioides 'Southgate Gem' is a perennial in the Plantaginaceae with a multi-stemmed, upright habit and a semi-woody base. It carries narrow, glossy mid to dark green leaves that remain semi-evergreen to evergreen in milder sites. Flowering runs from June to September, producing the tubular penstemon blooms characteristic of the genus. It suits sunny, sheltered positions with freely draining soil.

Penstemon gloxinioides 'Southgate Gem' is a semi-evergreen perennial with glossy leaves and summer flowering from June to September in a sunny.

Penstemon gloxinioides 'Southgate Gem'

Penstemon hartwegii is a semi-evergreen perennial with well-branched, upright stems and a semi-woody base, notable for racemes of bell-shaped flowers in shades of red to purple. The leaves are narrow, glossy and mid to dark green. It flowers from June to September, bringing sustained summer colour. It suits a sunny, sheltered spot with sharp drainage.

Scarlet beard tongue (Penstemon hartwegii) is a semi-evergreen perennial with red to purple bell-shaped flowers that bloom from June to September.

https://en.wikipedia.org/wiki/Penstemon_hartwegii

Penstemon hartwegii

Scarlet beard tongue | Penstemon hartwegii

Penstemon hirsutus is a perennial in the plantain family commonly called hairy penstemon. It grows upright with a semi-woody base and a well-branched habit and carries narrow, semi-evergreen leaves. The plant prefers full sun on light, fertile, free-draining soils of neutral to alkaline reaction. It flowers from June to September.

Hairy penstemon (Penstemon hirsutus) is a full-sun perennial that flowers June to September and prefers neutral to alkaline, free-draining soils.

https://en.wikipedia.org/wiki/Penstemon_hirsutus

Penstemon hirsutus

Hairy penstemon | Penstemon hirsutus

Penstemon isophyllus is a semi-woody perennial with a well-branched, upright habit and narrow glossy leaves. It retains much of its foliage through the year and flowers from June to September. Plant it in full sun on light, fertile, free-draining soil with a neutral to alkaline pH. Avoid winter wet and give a sheltered, south- or west-facing position.

Equal-leaved penstemon Penstemon isophyllus flowers June to September and prefers full sun on light, free-draining, neutral to alkaline soils in.

https://en.wikipedia.org/wiki/Penstemon_isophyllus

Penstemon isophyllus

Equal-leaved penstemon | Penstemon isophyllus

Penstemon ovatus is a perennial in the Plantaginaceae with an upright, well-branched habit and a semi-woody base. It bears narrow, glossy mid to dark green leaves and produces tubular flowers from June to September. Hardiness H3–H5 (borderline to hardy) and a preference for full sun on light, fertile, free-draining loam or sand suit sheltered, south- or west-facing positions where winter wet is avoided.

Broad-leaved penstemon (Penstemon ovatus) is a semi-evergreen perennial for sunny, free-draining sites that flowers June to September.

Penstemon ovatus

Broad-leaved penstemon | Penstemon ovatus

Penstemon strictus is a perennial in the Plantaginaceae with upright, well-branched stems and a semi-woody base. It bears narrow, glossy mid to dark green leaves and may remain semi-evergreen. Plant in full sun on light, fertile, free-draining loam or sand with a neutral to alkaline pH. Avoid winter waterlogging, as winter wet causes most losses.

Rocky Mountain Penstemon (Penstemon strictus) thrives in full sun on free-draining neutral to alkaline soil and flowers June to September.