Variety traits
Hyacinthus orientalis L.
Hyacinthus orientalis is a cold-hardy plant capable of overwintering in open ground, provided it is grown within USDA hardiness zones 4 and above. Bulb survival during winter depends on planting dates and the quality of soil preparation.
In the reference 10 varieties crop Common hyacinth, where this is mentioned in the description.
The ability of Hyacinthus orientalis to withstand sub-zero temperatures is directly linked to soil temperature during the rooting period. Planting too early in warm soil induces premature shoot development, which reduces the natural resilience of the bulbs and leads to their death upon the onset of winter frosts.
To ensure winter hardiness, it is necessary to use well-drained sites and create a 'sand layer' around the basal plate of the bulb to prevent excess moisture. The use of fresh organic fertilizers in crop management is highly undesirable, as they make bulb tissues loose, which negatively affects the plant's ability to store nutrients and endure cold temperatures.
General information about the subject — on the page Frost hardiness.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Hyacinthus orientalis L. · Common hyacinth
L.W.A. van der Poel
Hyacinthus orientalis L. · Common hyacinth
Ignatius Antonius Johannes Dobbe
Hyacinthus orientalis L. · Common hyacinth
Hyacinthus orientalis L. · Common hyacinth
Hyacinthus orientalis L. · Common hyacinth