Hyacinthus Blue Pearl - Garden Hyacinth
Hyacinthus Blue Pearl - Garden Hyacinth
Hyacinthus Blue Pearl - Garden Hyacinth
Hyacinthus Blue Pearl - Garden Hyacinth
Hyacinthus x orientalis Blue Pearl
Common Hyacinth, Garden Hyacinth
The bulbs didn't flower. A few roots... then nothing...
Pascal, 16/02/2026
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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
Plant habit
Flowering
Foliage
Botanical data
Hyacinthus
x orientalis
Blue Pearl
Asparagaceae
Common Hyacinth, Garden Hyacinth
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
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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