Penstemon heterophyllus Souvenir dAdrien Régnier - Beardtongue
Penstemon heterophyllus Souvenir dAdrien Régnier - Beardtongue
Penstemon heterophyllus Souvenir dAdrien Régnier - Beardtongue
Penstemon heterophyllus Souvenir dAdrien Régnier - Beardtongue
Penstemon x heterophyllus Souvenir d'Adrien Régnier
Bellflower Beardtongue, Canterbury Bells Penstemon
After a few days, very good recovery.
EVELYNE, 11/04/2025
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Description
Penstemon 'Souvenir d'Adrien Régnier' is an old variety, acclaimed by gardeners around the world. This bushy plant is not very tall. It has a vibrant pink and white flowering that is vigorous, abundant, and long-lasting. Its bell-shaped flowers are large and produced profusely, from early summer until October, on a compact bush with bright green foliage. Unlike other penstemons, it is a fairly hardy perennial when planted in light soil that does not retain too much water in winter. Charming in summer beds or planted in pots on a patio, it is also a very pretty rockery plant and a lovely cut flower.
'Souvenir d'Adrien Régnier' is a bushy and woody perennial plant belonging to the Plantaginaceae family, just like foxgloves and snapdragons. It originates from the excellent Penstemon heterophyllus, a North American botanical species that is one of the easiest to grow in our climates. This 'Souvenir d'Adrien Régnier' variety forms beautiful bushy clumps that reach 40 to 50cm (16 to 20in) in all directions, with branched stems covered in abundant foliage. The foliage is finely lanceolate and bright green. It is semi-evergreen to evergreen, depending on the severity of the winter. Its growth rate is quite rapid. The flowering period extends from June to September-October, developing at the terminal part of the leafy stems. The bell-shaped flowers are gathered in tight clusters. They display a delightful 'strawberry ice' pink colour and reveal an almost white throat striped with bright carmine red veins. The plant will adapt to any good garden soil that is properly drained and not too dry in summer.
'Souvenir d'Adrien Régnier' is ideal in flower beds or borders, among perennials such as agapanthus, bellflowers, catmints, perennial geraniums, or mixed with shrubs such as English roses or Perovskia. It blends well with light annuals such as love-in-a-mist and cornflowers. It will mingle among the stones of a rockery that is not too dry (and in non-limestone soil), alongside cotton lavenders, rockroses, or diffused lithodoras. Its pastel pink flowers are enhanced by dark foliage, such as that of Weigela 'Minor Black' or Physocarpus 'Summer Wine'. It also performs very well in pots with proper drainage and regular watering and fertiliser applications. Penstemons also make very good cut flowers.
Penstemon heterophyllus Souvenir dAdrien Régnier - Beardtongue in pictures
Flowering
Foliage
Plant habit
Botanical data
Penstemon
x heterophyllus
Souvenir d'Adrien Régnier
Scrophulariaceae (Plantaginaceae)
Bellflower Beardtongue, Canterbury Bells Penstemon
Cultivar or hybrid
Planting and care
The hardiness of Penstemon 'Souvenir d'Adrien Régnier' is rather good. It withstands temperatures of around -12°C (10.4°F) for short periods of time, provided that the soil is very well-drained in winter and with good protection of the stump under a thick layer of leaves or straw. It does not tolerate heavy and wet soils in winter, but can adapt to well-tilled and well-drained good garden soil.
To successfully grow hybrid penstemons, the nature of the soil is crucial. These mountainous plants prefer rather rich, light, occasionally dry to moist, very well-drained soils, especially in winter. They fear hot summers and excessively dry conditions. In overly wet soils, they quickly rot. In cool climates, place the plants in a warm and sunny location, elevated and sheltered from cold winds (south or west exposure). In hot climates, choose a rather cool and semi-shaded exposure. In very cold regions, it is advisable to take stem cuttings in autumn.
Penstemon does not have any specific diseases. This plant requires only minimal maintenance, but when you remove faded flowers in autumn, make sure to slightly shorten the flowerless stems without cutting them down to the ground, especially in regions with humid winters. Indeed, the foliage plays an important role in moisture regulation. As with shrubby salvias, wait until spring is well established (March-April) to shorten branches whose foliage has been damaged by the cold. If summer is dry, water regularly to support flowering. In the coldest regions, cover the stump with glass or a frame to protect it from severe cold. Divide your penstemons every three or four years to rejuvenate them, but wait until spring to perform this operation.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.