Heuchera Plum Royale
Heuchera Plum Royale
Heuchera Plum Royale
Heuchera Plum Royale
Coral Bells, Alumroot
Beautiful plant, which came through the rainy winter without too much damage, and made a good recovery in spring.
Alain, 30/03/2026
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Description
L’Heuchera ‘Plum Royale’, avec son feuillage aux reflets de prune et d’argent, donne de la couleur aux bordures et aux massifs mi-ombragés pendant une grande partie de l’année. Elle se distingue notamment par sa capacité à conserver des tons pourpres bien marqués en été, alors que certaines heuchères foncées ont tendance à pâlir. Ses petites fleurs claires, portées par des tiges sombres, ajoutent une touche légère au début de l’été.
L’Heuchera ‘Plum Royale’ appartient à la famille des Saxifragacées. Cet hybride horticole américain est issu du croisement de deux lignées de sélection de Terra Nova Nurseries. Il a été obtenu dans l’Oregon par Janet N. Egger et protégé par un brevet américain en 2010.
Cette vivace forme une touffe dense et arrondie, haute de 25 à 30 cm pour 35 à 40 cm d’envergure. Les hampes florales s'élèvent à 40 ou 50 cm. Ses feuilles, larges de 10 à 15 cm, sont arrondies, légèrement lobées et bordées de dents souples. Les jeunes feuilles sont brillantes, d’un pourpre prune soutenu parcouru de nervures presque noires. En prenant de l'âge, elles se couvrent progressivement d’un voile argenté tout en conservant des nuances rouge pourpré. En hiver, le feuillage prend une teinte violet argenté particulièrement décorative. Il est semi-persistant en climat froid mais persiste plus ou moins lorsque l’hiver est doux. En juin et juillet, des tiges pourpres s’élèvent au-dessus de la touffe et portent de fines inflorescences composées de petites clochettes blanc rosé. Cette floraison, gracieuse et légère, se détache nettement sur le feuillage sombre et peut être utilisée dans de petits bouquets. 'Plum Royale’ pousse de préférence à mi-ombre ou sous un soleil doux, dans une terre humifère, fraîche et parfaitement drainée. Une certaine luminosité renforce sa coloration pourpre, alors qu’un emplacement trop sombre la fera devenir plus verte. Très rustique, cette heuchère résiste à des températures proches de –29 °C dans un sol bien drainé.
Cette heuchère s’utilise en bordure de massif, au pied des arbustes, le long d’une allée ombragée ou dans une potée sur la terrasse. Plantée par petits groupes, elle crée une masse de feuillage sombre qui reste décorative plusieurs mois. Dans un jardin d’ombre ou d’inspiration anglaise, on peut l’associer au Brunnera macrophylla ‘Jack Frost’, à l'Heuchera 'Wild Rose', à la fougère japonaise Athyrium niponicum var. pictum et au cœur-de-Marie blanc ‘Alba’. Elle trouve également sa place dans des compositions en bac, où son feuillage accompagne les floraisons printanières et automnales.
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Heuchera Plum Royale in pictures
Flowering
Foliage
Plant habit
Botanical data
Heuchera
Plum Royale
Saxifragaceae
Coral Bells, Alumroot
Cultivar or hybrid
Planting and care
Heuchera ‘Plum Royale’ is planted in spring or early autumn, in partial shade or in a position receiving a few hours of gentle sun. It requires humus-bearing, moist and well-drained soil, preferably slightly acid to neutral. The collar must sit flush with the soil surface, as it may rot if buried too deeply. A spacing of 35 to 40 cm allows the clumps to develop properly. Regular watering is necessary during the first year and during hot periods, without letting water stagnate around the stump. A mulch of mature compost or decomposed leaves maintains the richness of the soil. When the stump begins to lift or become bare, it can be divided in spring, every three or four years.
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.
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