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Helleborus niger
Also called Christmas Rose, Black Helleborus
Black hellebore is an evergreen perennial that flowers in midwinter, often through snow, with large white or pinkish blooms. It needs moist, humus-rich, alkaline soil in dappled shade; acidic soil, dryness and full sun make it hard to grow well.
Helleborus niger, commonly called Christmas rose or black hellebore, is an evergreen perennial flowering plant in the buttercup family, Ranunculaceae. It is one of about 20 species from the genus Helleborus.
It is a poisonous cottage garden favourite because it flowers in the depths of winter.
The plant is a traditional cottage garden favourite because it flowers in the depths of winter. Large-flowered cultivars are available, as are pink-flowered and double-flowered selections. It has been awarded an Award of Garden Merit (AGM) H4 (hardy throughout the British Isles) by the Royal Horticultural Society, as has one of its hybrids (see below).
It can be difficult to grow well; acidic soil is unsuitable, as are poor, dry conditions and full sun. Moist, humus-rich, alkaline soil in dappled shade is preferable. Leaf-mould can be dug in to improve heavy clay or light sandy soils; lime can be added to 'sweeten' acid soils.
All parts of the Christmas Rose plant are considered toxic upon consumption or physical contact with sap from damaged plant tissues. This is due to the fact that its organs contain varying levels of different glycosides - which are common plant defense mechanisms against herbivores and microorganisms.
The natural distribution stretches from the eastern northern Alps (including the Julian Alps, Triglav) and southern Alps, west to Vorarlberg. In addition, Helleborus niger is common in the Apennines and northern Dinaric Alps of Slovenia and Croatia. It has been observed up to an elevation of 1900 meters. In the Berchtesgaden Alps, it grow up to an elevation of 1560 meters. In Germany, Helleborus niger is only native to Bavaria and in the Allgäu Alps Helleborus niger is not indigenous.
Blue-grey hellebore · Stinking Hellebore · Majorcan Hellebore · Lenten-rose · Helleborus thibetanus · Green Hellebore · Hellebore
Text excerpted from the Wikipedia article Helleborus niger by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
Pet safety from the ASPCA toxic and non-toxic plant lists.
