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Hyacinthus Blue Pearl - Garden Hyacinth

Hyacinthus x orientalis Blue Pearl
Common Hyacinth, Garden Hyacinth

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This hyacinth produces long clusters of pleasantly scented flowers. The inflorescences are made up of a multitude of small bluish-purple flowers, bordered by a lighter edge. A beautiful variety that blooms in March-April when planted outdoors. Indoors, this prepared bulbous plant will bloom in the heart of winter, in a cool and bright room.
Flower size
20 cm
Height at maturity
20 cm
Spread at maturity
10 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -15°C
Soil moisture
Dry soil, Moist soil
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Best planting time September to October
Recommended planting time September to December
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Flowering time January
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Description

Hyacinthus orientalis 'Blue Pearl' is a Hyacinth that can be grown in the garden or indoors. Here, this large-sized bulb is specially prepared for forcing, which allows for advancing its flowering in the heart of winter. What a pleasure it is to enjoy this visual and olfactory spectacle! The large inflorescences, tinged with violet, are particularly decorative and emit a very pleasant fragrance in the house. It will be perfectly at home in a bright and cool room.

 

While the Oriental Hyacinth is no longer widely cultivated, this species native to the Middle East and Mediterranean regions has given rise to countless cultivars, highly appreciated in gardens for their delightful spring flowering or in floristry for their suitability for forcing. 


Formerly classified among the Liliaceae, the genus Hyacinthus is now classified in the family Asparagaceae, like asparagus, as well as Agave and Yucca. This plant has a large oval bulb and forms a tuft of bright green ribbon-like leaves, from which emerges, as early as January indoors, a robust floral stem, 20cm (8in) in length. It bears several dozen star-shaped flowers, carried by short peduncles, thus forming a dense cluster measuring up to 8 or 9cm (3 or 4in) in diameter. Consisting of a tube that opens into a trumpet with six elongated and pointed petals, the flowers of a superb blue, slightly tinged with violet, have their star-shaped structure highlighted by a light blue border. This coquettishness highlights the very graphic aesthetic of the inflorescence, whose sweet perfume equally charms the senses. The foliage is deciduous after flowering. It is at this time that the bulb, whose reserves are exhausted, enters dormancy. The forcing technique consists of exposing the bulbs to cold temperatures for several weeks, starting from the end of summer, in order to break their dormancy and induce the flowering process.

 

Among early flowering plants, the hyacinth is one of the few bulbs with large flowers and one of the easiest to force for winter flowering. Reserve a prime spot for it in a very bright room, away from any sources of heat. To create winter floral scenes, you can combine 'Blue Pearl' with other bulbs suitable for forcing, such as the 'Peach Blossom' Tulip with its beautiful pink flowers, the yellow 'Golden Harvest' Narcissus, Crocuses, or Scillas. Also consider the numerous bushes that respond well to forcing and will provide a beautiful backdrop: the stunning Japanese Quinces with their vibrant flowers or the Forsythias with their countless yellow flowers...
Hyacinth flowers are edible, both raw and cooked, and have a slightly mucilaginous texture. Depending on preferences, they can be crystallized with sugar or added to fruit salads. In the past, they were a delicacy that could be found under the name "confection of Constantinople hyacinths".

 

 

 

Hyacinthus Blue Pearl - Garden Hyacinth in pictures

Hyacinthus Blue Pearl - Garden Hyacinth (Plant habit) Plant habit

Plant habit

Height at maturity 20 cm
Spread at maturity 10 cm
Growth rate fast

Flowering

Flower colour blue
Flowering time January
Inflorescence Cluster
Flower size 20 cm
Fragrance Very fragrant, sweet, floral, fresh
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Hyacinthus

Species

x orientalis

Cultivar

Blue Pearl

Family

Hyacinthaceae

Other common names

Common Hyacinth, Garden Hyacinth

Origin

Cultivar or hybrid

Planting and care

For the forcing of hyacinth bulbs, it is strongly recommended to obtain new bulbs cultivated specifically for this purpose every year.

Indeed, the bulbs are depleted by forcing, and even a period of rest after the foliage has dried out will not allow them to replenish their reserves.
However, they can be stored, once the foliage has turned yellow, in a cool place until autumn, when they can be replanted in the garden. The bulbs that are replanted will ideally bloom after two years, as a season of growth in the ground without flowering will allow them to replenish their reserves.


First method: pot culture:
Upon receiving your bulbs, choose an attractive container with a drainage hole (pot, planter...), the height of which should be at least twice the height of the bulbs. Place a layer of gravel at the bottom, then a mixture of soil or horticultural compost mixed with sand or a ready-to-use mixture. The substrate should be light and porous, a mixture of 2/3 garden soil and 1/3 sand works well.

The bulbs should be planted close together but should not touch each other, and the soil should cover them by 10cm (4in).

Place the pots outside in the garden or on a balcony.

When the bulb starts to sprout, bring the pot indoors and place it in a dark and cool place for a period ranging from four days to one week. Once the shoot reaches a height of eight to ten centimetres, move the pot into the house. It is preferable to allow for an adjustment period by first placing it in a slightly cool and bright room before installing it in a heated room, near a window in the living room for example, while regularly rotating the pot to prevent the twisting of the flower spike.


Second method: carafe culture:

In stores, forcing carafes or hyacinth carafes can be found, but it is possible to use a small vase, a jar, or any other transparent glass container with a diameter that matches the bulb's diameter. In this case, the growing medium is water.

Place a piece of charcoal at the bottom of the carafe to prevent water rot and putrefaction.

Place the bulb in the carafe with the tip facing upwards.

Pour water into the carafe so that it reaches the base of the bulb, without actually touching it, leaving 1 or 2 millimetres between the water surface and the base of the bulb.

Place everything outside or in a cool, frost-free place.

Maintain the water level at the base of the bulb diligently. The roots develop at the base, as well as small shoots at the top of the bulb.

When the shoot measures approximately 8 centimetres (3 inches), the carafe can be brought indoors, even in a slightly heated and well-lit room.


Planting period

Best planting time September to October
Recommended planting time September to December
Planting depth 10 cm

Intended location

Type of use Greenhouse, Conservatory
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Beginner
Planting density 20 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil moisture Dry soil, Moist soil, Well-drained, deep soil.

Care

Pruning instructions Remove the faded flowers so that the plant does not exhaust itself by producing seeds.
Pruning Pruning recommended once a year
Pruning time March to April
Soil moisture Dry soil, Moist soil
Disease resistance Very good
Overwinter Needs to be stored

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