Alcea rosea 'Crème de Cassis'
Alcea rosea 'Crème de Cassis'
Alcea rosea 'Crème de Cassis'
Alcea x rosea Crème de Cassis
Hollyhock
Having a clay soil, I prepared a mixture of sand, compost and garden soil and despite these precautions, the plant did not take root. Out of the 3 hollyhocks ordered, only one shoot grew without producing any flowers, only foliage. I planted them at the end of April 2019. A wild hollyhock appeared a little further away.
catherine, 02/04/2020
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Description
Alcea rosea 'Crème de Cassis' is a variety of hollyhock with a deliciously fruity flowering, shorter than the 'Chater's' varieties for example. Its floral spikes are generously adorned with whimsical flowers, single or double, with a blackcurrant sorbet colour, almost white on the edges, sometimes revealing their pale yellow hearts. This perennial plant often cultivated as a biennial, iconic of English cottage gardens, is wonderful at the back of borders, or to cover the walls of a closed garden. Give it sun, a well-drained soil not too dry, and the shelter of a wall, or a bed of low bushes to protect its flower columns from strong winds. This variety, often offered as seeds, reseeds quite faithfully in the garden. It is one of the most beautiful flowers of summer!
The hollyhock is also known by its Latin name Althaea rosea, and its vernacular names adopt all the accents of our regions: it is called Passe-rose, Rose à bâton, Rose papale or primerose. From the Malvaceae family, it originates from Asia Minor and is often naturalized in slightly wild gardens, fallow fields, heaps of soil. A plant of limestone and sometimes stony soils, the hollyhock is tolerant and easy to grow everywhere. Its taproot does not appreciate being disturbed: choose its location carefully and do not disturb it anymore.
'Crème de Cassis' is an improved variety of this wild flower. It is an erect plant, usually not branched, which can reach 1.50m (5ft) to 1.80m (6ft) in height when flowering. It forms a rosette of rounded leaves with 5 or 7 lobes, from which emerges a robust floral stem, whose growth is very rapid. This inflorescence in spikes is covered with large buds that blossom, staggered from June-July to August-September, and from the bottom to the top, into large ephemeral flowers with single to double corollas on the same stem, whose texture resembles crepe. They display a lovely hue, generally bicolour, with the outer petals quickly fading to a very pale mauve-pink. Throughout this period, they will attract bees and butterflies to your garden. The flowering gives way to numerous fruits filled with seeds that spontaneously reseed in the most unexpected areas, which it chooses itself: at the base of walls, in poor and stony soils, cracks in walls, etc...
Very common in abandoned gardens or fallow fields in our countryside, the hollyhock is often cultivated at the back of borders or against a wall to protect it from strong winds. The fresh colour of this selection will allow you to create superb associations with light-flowering perennials such as Gauras, salvias, bellflowers, Monardas, hybrid mulleins, or the royal lily for its fragrance, all of which are easy plants to grow in most of our gardens. The hollyhock is an edible plant, its flower buds can be eaten raw in salads and the young leaves raw or cooked.
Hollyhock is both ornamental and medicinal. Oil with drying properties can be extracted from its seeds. Rich in mucilage, it has soothing, emollient, expectorant, laxative, and appetizing properties, which are milder compared to those of its cousin the Marshmallow (Althea officinalis) used by herbalists.
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Alcea rosea 'Crème de Cassis' in pictures
Flowering
Foliage
Plant habit
Botanical data
Alcea
x rosea
Crème de Cassis
Malvaceae
Hollyhock
Cultivar or hybrid
Planting and care
The 'Crème de Cassis' hollyhocks appreciate warm situations, sunshine, and can tolerate ordinary soil, even clayey, chalky, or stony soil, but they are much more opulent in a fertile soil that retains some freshness during flowering. These plants with taproots prefer deep soils and do not appreciate being transplanted when they are too developed. Care must be taken not to break this taproot during handling. The rosea species is drought resistant and very hardy, it is susceptible to slugs and particularly sensitive to rust. Excessive moisture should be avoided in spring and summer and, if necessary, treated preventively with a fungicide.
In October, remove the faded flower stalks.
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).
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 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.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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