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Helleborus niger

Family: ranunculaceae
Common name(s): Jacob Christmas Rose
Hardiness ratings: USDA zone 3~5 - 8~9

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• GRIN. Taxonomical details, with common names, distribution, and synonyms.
• The Plant List. Taxonomical lookup

Links for Helleborus niger

• All Things Plants - Community-assembled plant profile (3 varieties in database) (12 photos)
• BBC Gardening - Plant profile with horticultural details and garden uses. (1 photo). Also a page for 'Potter's Wheel'.
• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8) (11 photos)
• Digging Dog Nursery: Helleborus niger 'HGC Jonas' - Catalog page with descriptive information (zone 5)
• Heritage Perennials: Helleborus niger 'Praecox' - Profile with description and horticultural details. (additional pages for other varieties) (zone 4-9) (1 photo)
• Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 3-8) (7 photos). Also a page for 'Altifolius'.
• NARGS - Plant of the month portrait, with description and information about cultivation and propagation. (1 photo)
• NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (4 photos)
• North Carolina State University factsheet - Plant profile with horticultural details and comments (2 photos)
• Ontario Rock Garden Society - Germination information (additional information for other varieties)
• Plant Delights Nursery: Helleborus niger 'Double Fashion' PPAF - Catalog page with photo, horticultural basics, and descriptive blurb. (additional pages for other varieties) (1 photo)
• Rob's Plants - Plant profile with basic horticultural information and often personal observations. (6 photos)

Helleborus niger subsp. macranthus

Common name(s): Christmas Rose

Links

• Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (1 photo)

Helleborus niger Sunset Group