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Family: apiaceae
Common name(s): sea holly
Hardiness ratings: USDA zone 3~6 - 7~9 
General resources
Links for Eryngium giganteum
- All Things Plants - Community-assembled plant profile (2 varieties in database)
 (4 photos)
- Asianflora - Plant photos. (4 photos)
- BBC Gardening - Plant profile with horticultural details and garden uses. (1 photo)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 5-8) (11 photos)
- Denver Botanic Gardens - Description, native range, and cultural requirements. (additional pages for other varieties) (zone 5) (8 photos)
- Digging Dog Nursery - Catalog page with descriptive information (zone 4)
- Heritage Perennials - Profile with description and horticultural details. (zone 3-9) (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 4-7)
- Ontario Rock Garden Society - Germination information (additional information for other varieties)
- Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (1 photo)
- Rainy Side Gardeners - Plant profile compiled by two gardeners in the Pacific Northwest. Includes propagation and pruning methods, and commentary. (zone 6-9) (1 photo)
- Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (4 photos)
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