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Allium caeruleum

Family: amaryllidaceae
Common name(s): ornamental onion
Hardiness ratings: USDA zone 4~5 - 8

General resources

• Wikipedia. Online encyclopedia entry (if defined).
• Google images. Web search for photographs.
• The Plant List. Taxonomical lookup
• Catalogue of Life. Taxonomical lookup

Links for Allium caeruleum

• Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8) (8 photos)
• Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 5) (8 photos)
• Garden.org - Community-assembled plant profile (33 photos)
• Iris' Garden - Gardener in the Netherlands presents a photo of this plant, with basic horticultural information. (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 4-8) (3 photos)
• NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (2 photos)
• North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 4-8a) (8 photos)
• Ontario Rock Garden Society - Germination information
• Pacific Bulb Society - One of the plants described on this page about the genus. (7 photos)