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Helleborus niger, Linnaeus (1753)

  • Glabrous perennial, usually 6-9" in flower
  • Leaves basal, pedate with 7-9 segments, often wintergreen
  • Flowers typically one per stalk, white to pinkish, 2-5" in diameter
  • Croatia, Austria, Italy, Germany, Switzerland
  • Mountain woodland, valleys, alpine grassy areas, elevation 1000-6000'

One of the most common hellebore species in gardens, Helleborus niger
(often known as "Christmas Rose") produces large white flowers that
sometimes turn pink or deep red-pink as they age. H. niger is one of the few
species where double flowers have been found and disseminated
commercially.

H. niger often grows on slopes and at high altitudes. Basically an alpine plant,
it may be covered in snow for months. Wild plants typically bloom after the
snow slowly melts in spring, avoiding long periods of continual frost. In its
natural habitat it enjoys well-drained conditions in limestone soil but with
ample moisture during spring. Such conditions partly explains why H. niger
looks so wonderful in the wild but can at times be less than magnificent in the
garden. Still, it is a worthy garden plant and is one of the most showy of all
hellebores. I find it fairly easy in garden conditions although it can be a bit slow.


It's leaves often persist well into winter before browning and giving way to the
new year's flower stalks and foliage. Leaves are dark green, sometimes with
blue-ish tones and have a thick, leathery appearance. In the wild or in
conditions where the leaves are protected by snow cover, the overwintering
leaves may remain in pristine condition even during flowering. H. niger
produces only basal leaves, and the relatively bare flower stalks are not
usually generous with their flowers, often producing only one per stalk. The
seeds produce a noticeable elaiosome which is a good indication that they
should be planted when fresh if possible.

H. niger is an 'acaulescent' hellebore in the sense that it does not produce an
above-ground stem, but it exhibits key differences from the plants in the
section Helleborastrum. Reproductively, it exhibits some unique qualities.
While acaulescent and caulescent species do not typically hybridize readily, H.
niger provides a good seed parent for stemmed species like Helleborus
lividus and Helleborus argutifolius. H. niger crosses have resulted in some of
the best garden plants available, but mostly the offspring of these crosses are
infertile. It does not readily hybridize with the other acaulescent species,
though it may be forced to do so occasionally. Some of the usual crosses
include H. niger x argutifolius  (H x nigercors); H. niger x H. lividus (H. x
ballardiae); and H. niger x H x sternii (H x sternii being a cross between H.
argutifolius and H. lividus) yielding H x ericsmithii.

Despite it common name, the Christmas Rose may not bloom during the
holidays. In my garden it is more likely to bloom in late January or February.
However, depending on climate and genes, plants may bloom any time from
November to June. While I grow many species in complete sun, I find that H.
niger does just fine with dappled shade. In areas of mild summers and
retentive soils and/or consistent moisture, it can also be successfully grown
with plenty of exposure. It is quite hardy, to USDA zone 4 at least.


The curiously pristine blooms of wild H.
niger.  Photos: Matthias Thomsen
Helleborus x ericsmithii.
Photo: Mike Byford