Black hellebore

Helleborus niger

Pet & Human Safety

Toxic to people and pets

Hazardous parts

Bark, Flowers, Fruits, Leaves, Roots, Sap/Juice, Seeds, Stems

Preparation

Not applicable; this is an ornamental plant.

Hazard type

NC State rates poison severity Medium; toxic principles are cardiac glycosides, saponins and protoanemonin. Sap contact can cause minor, short-lived skin irritation.

Hazard route

Ingestion of any part, and contact with the cell sap.

How complete this information is

The safety information on this page is partial. Where a source covers a point, it is shown; where none does, the page says so.

Toxic to pets

Verdict: toxic, per ASPCA Christmas Rose, Easter Rose, Hellebore, Lenten Rose.

PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.

Look-alike warning

Could be mistaken for Other plants with a similar name or look. To tell them apart: Match on the scientific name, Helleborus niger, not on the common name.. NC State notes that hellebore hybrids and species are often hard to tell apart and are misidentified; this guide covers Helleborus niger only.

Poison control

If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.

Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.

Naturalist Lore

Historical Background & Breeding Lore

The history of this plant and its name, and how it was bred, where we have them.

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Care

Hardiness zones: USDA zones 3 to 8 (NC State Extension)
Light: Partial to full shade; NC State lists dappled sunlight through upper canopy and deep shade. It does not tolerate bright winter sun or high temperatures.
Water needs: low
Mature size: 9 to 12 inches tall and 1 to 1.5 feet wide (NC State Extension).

Soil & Drainage

Pruning & Flush Rhythm

Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

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