 | Eryngium tricuspidatum
Sea Holly | Herbaceous Flowers, Container-friendly, Upright - Clump | Dark blue flowers (Summer), Silver foliage |
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 | Eryngium bourgatii
Sea Holly, Eryngium | Herbaceous Flowers, Container-friendly, Spikey | Blue-silver flowers (Summer), Blue foliage |
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 | Eryngium giganteum
'Silver Ghost'
Sea Holly, Eryngium | Herbaceous Flowers, Container-friendly, Spikey | Blue-silver flowers (Summer), Blue foliage |
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 | Eryngium bougatti
'Picos Blue'
Eryngium | Herbaceous Flowers, Upright - Clump | Blue-silver flowers (Summer), Blue foliage |
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 | Eryngium giganteum
Eryngium | Herbaceous Flowers, Container-friendly, Spikey | Blue-silver flowers (Summer), Blue foliage |
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 | Eryngium tripartitum
Eryngium | Herbaceous Flowers, Container-friendly, Upright - Clump | Dark blue flowers (Summer), Silver foliage |
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 | Eryngium variifolium
Compact Sea Holly | Herbaceous Flowers, Ground cover, Spreading clump | Non-flowering, Dark Green foliage |
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 | Eryngium planum
'Blackappe
Eryngium | Herbaceous Flowers, Container-friendly, | Dark blue flowers (Summer), Grey foliage |
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