Graham Rice & Elizabeth Strangman,
The Gardener's Guide to Growing Hellebores
, David & Charles/Timber Press (1993) ISBN 0-7153-9973-X
Brian Mathew,
Hellebores
, Alpine Garden Society (1989) ISBN 0-900048-50-6
abstract Herrera, C. M. (2005). Post-floral perianth functionality: contribution of persistent sepals to seed development in
Helleborus foetidus
(Ranunculaceae).
Amer. J. Bot.
92: 1486-1491.
Hellebores.org: A comprehensive online resource on the genus
Helleborus
RHS plant pathology report on 'Hellebore Black Death' disease (pdf)
A French hellebore enthusiast's non-commercial site
NCBI Taxonomy classification entry
Harvington Hellebores
The National Collection of Hellebores, Broadview Gardens, Kent
Официальный сайт: Морозник кавказский
Artistic Movement, West Chester PA.
External links
RHS plant pathology report on 'Hellebore Black Death' disease (pdf)
A French hellebore enthusiast's non-commercial site
Here's a list of some great annual flowers that are easy to grow, show off spectacular colors, and are worth every dig of a trowel to plant:Begonia - Grows 6 to 12 inches tall. Red poppies are worn to commemorate deaths of soldiers.Hosta Grows up to 3 feet. Blooms