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Helleborus hybridus Double Black

Helleborus x hybridus Double Black
Lenten Rose, Oriental Hellebore

4,7/5
19 reviews
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Hellebore with broken branches and quite small, I hope it will revive itself and flower.

Françoise, 19/02/2023

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This plant carries a 12 months recovery warranty

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Value-for-money
This double-flowered variety of the Christmas rose bears almost black blooms. It brings a touch of elegance to shaded areas of the garden. Plant it alongside other varieties with pink or white flowers for a spectacular display. Oriental hellebores bloom in the heart of winter and are easy to succeed with in moist, ordinary, even clayey and heavy soil.  
Flower size
6 cm
Height at maturity
40 cm
Spread at maturity
30 cm
Exposure
Partial shade, Shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time January to March, September to December
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Flowering time February to April
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Description

Helleborus x hybridus 'Double Black' produces double flowers which are almost black. They bear silky reflections in shades of purple or slate blue and are adorned with a heart of pale, almost white, stamens. It is a robust and very hardy perennial, easy to grow in all our regions, even in heavy soil. Combine its dark flowers with pink, white, apricot, solid or speckled blooms, under bushes, in the undergrowth, or to decorate the north side of the house. Christmas roses create beautiful flowering pots that will brighten up the gloomy days of winter.

 

Originally from Greece, Turkey, and central and eastern Caucasus, the oriental hellebore, sometimes called Christmas rose, is a perennial plant of the Ranunculaceae family. It hybridises very easily with other species to produce, through random sowing, plants with varied colours and forms, so much so that no variety names are given to these hybrids. They are distinguished by shape and colour characteristics. The oriental hellebore is a hardy plant that can withstand temperatures as low as -15°C (5°F), naturally growing in forests, thickets, and clearings up to 2,000m (7ft) above sea level. The 'Double Black' form develops into a compact and leafy clump measuring 40cm (16in) in all directions. It is composed of palmate basal leaves, which are slightly toothed, dark green and shiny. These are evergreen leaves, 30 to 40cm (12 to 16in) long, composed of 7 to 9 leaflets. They only live for 8 months and are regularly replaced by new leaves.

Between February and April, a bouquet of double flowers measuring 4 to 5cm (2in) in diameter forms. These are cup-shaped and inclined flowers, with several rows of petals, which is a characteristic of this group of hybrids. They incline downwards, allowing water to slide off like an umbrella. This protects the heart of the flower from rotting. Hellebore is a bushy plant. It does not like to be moved once established, with young shoots sometimes taking time to bloom. The seeds are sown by ants.

 

Use hellebores like elements of an old tapestry, mixing them with brightly coloured woodland plants. They are well highlighted when planted near pieris, small-sized rhododendrons, under conifers (especially on windy sites), and surrounded by primroses, wood anemones, corydalis, dicentras, cardamines, or spring-flowering bulbs and snowdrops. You can also accompany them with ferns and shade iris to create a beautiful contrast a little later in the season. They can be planted in groups, like a bouquet, near the entrance of the house, in shaded areas, to enjoy their early flowering up close. They are suitable as cut flowers and in flower beds, borders, or even planters. Hellebore flowers do not wither like most flowers. Instead, they dry up.

Each hellebore, resulting from a sowing, is unique in flower colour, so slight variations in colour may exist between two plants. This is normal and inevitable. However, if the difference is too significant and detracts from the desired effect, we will refund or replace the affected plant.

Helleborus hybridus Double Black in pictures

Helleborus hybridus Double Black (Flowering) Flowering
Helleborus hybridus Double Black (Foliage) Foliage
Helleborus hybridus Double Black (Plant habit) Plant habit

Flowering

Flower colour black
Flowering time February to April
Inflorescence Double
Flower size 6 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Evergreen
Foliage colour dark green

Plant habit

Height at maturity 40 cm
Spread at maturity 30 cm
Growth rate normal

Botanical data

Genus

Helleborus

Species

x hybridus

Cultivar

Double Black

Family

Ranunculaceae

Other common names

Lenten Rose, Oriental Hellebore

Origin

Cultivar or hybrid

Other Oriental Hellebore

  1. Out of stock
    From €17.90 2L/3L pot

  2. Out of stock
    From €17.90 2L/3L pot

  3. Out of stock
    From €17.90 2L/3L pot

  4. Out of stock
    From €17.90 2L/3L pot

Planting and care

It grows in any rich, light or clayey, neutral to acidic soil. Plant in partial or light shade, sheltered from cold and dominant winds. Special care should be taken to avoid direct sunlight during the hottest hours in warm and sunny regions. This perennial should be planted from early autumn to spring, between February and April. It thrives in deeply worked soil mixed with organic matter. To fertilise, use bone meal or another organic fertiliser. Water the plants well after planting and then add a layer of mulch 2 to 5cm (1 to 2in) thick. Regularly remove faded leaves to improve flowering. Maintain a planting distance of 30 to 40cm (12 to 16in) between each plant to promote their development. Hellebores do not tolerate stagnant water, as it may cause them to rot.

The roots should not completely dry out in summer. Hellebores can be affected by a fungal disease transmitted by aphids, known as black spot disease. Remove old leaves from deciduous species or stained leaves from evergreen species when flower buds appear. Remove faded flowers after seed fall. They can also suffer from grey rot or die from collar rot. This often occurs due to poor growing conditions, in excessively wet situations.

On a balcony or patio, plant them in pots that are 4 to 5 times larger than the plants, as they need space to develop their root system. Very hardy, most hellebores can withstand negative temperatures down to -15°C (5°F) without suffering, allowing them to adapt to almost all regions.

Planting period

Best planting time March, October
Recommended planting time January to March, September to December

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border, Edge of border, Container, Slope
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Exposure Partial shade, Shade
Soil pH Acidic, Neutral
Soil type Clayey (heavy), Silty-loamy (rich and light)
Soil moisture Moist soil, light and rich in humus

Care

Pruning instructions Remove the old leaves from deciduous species or the stained leaves from evergreen species, when the flower buds appear. Remove faded flowers after seed fall.
Pruning Pruning recommended once a year
Pruning time January to March
Disease resistance Good
Overwinter Can be left in the ground
4,7/5
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