Eryngium bourgatii (Mediterranean sea holly)
Other names: Bourgati's eryngo
E. bourgatii is a clump-forming, herbaceous perennial with rounded, deeply lobed, spiny, silver-veined, dark green leaves and, in summer, branching, deep blue stems bearing umbels of blue or grey-green, cone-like flowers with prominent, lance-shaped, blue-flushed, silver bracts.
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0.3m max. spread |
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0.45m max. height |
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2-5 years to maturity |
Eryngium maritimum (Sea holly)
Other names: Seaside eryngo
E. maritimum is a mound-forming, evergreen perennial with upright to decumbent stems bearing stiff, spiny, blue- to grey-green leaves and cone-like, blue flowers from summer into autumn.
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0.5m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Eryngium bourgatii 'Oxford Blue' (Bourgati's eryngo 'Oxford Blue')
Other names: Sea holly
'Oxford Blue' forms clumps of divided leaves with prominent white veins, and cone-like, dark blue flower-heads with silvery-blue, spiny bracts.
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0.5m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Eryngium bourgatii 'Picos Amethyst' (Bourgati's eryngo 'Picos Amethyst')
Other names: Sea holly
'Picos Amethyst' is a thistle like perennial, with deeply cut, grey-green leaves and lilac-blue flowers on branching, wiry stems.
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0.3m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Eryngium bourgatii 'Picos Blue' (Bourgati's eryngo 'Picos Blue')
Other names: Sea holly
'Picos Blue' is a thistle like perennial, with deeply cut, grey-green leaves and blue-green, turning to lilac-blue, flowers on branching, wiry stems.
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0.3m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Eryngium 'Blue Waves' (Sea holly 'Blue Waves')
Other names: Eryngo 'Blue Waves', Eryngium 'Hillier Blue Waves'
'Blue Waves' is a clump-forming, evergreen to semi-evergreen perennial with rounded, deeply lobed, toothed, grey-green, leaves, paler at the veins, and, in summer, sturdy, upright, branched, dark purple-blue stems bearing cone-like, violet-blue flower-heads with long, narrow, spiny, purple-blue bracts.
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0.5m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Eryngium planum 'Blauer Zwerg' (Sea holly 'Blauer Zwerg')
Other names: Eryngium planum Blue Dwarf
'Blauer Zwerg' forms clumps of branched stems, and cone-like, lilac-blue flowerheads with spiny bracts in late summer.
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0.5m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Eryngium 'Neptune's Gold' (Sea holly 'Neptune's Gold')
Other names: Eryngium x zabelii 'Neptune's Gold'
'Neptune's Gold' is a clump-forming, evergreen perennial with rounded, deeply lobed, toothed, golden-yellow to yellow-green leaves and, in summer, upright, branched, purple stems bearing cone-like, blue flower-heads with narrow, conspicuous, spiny bract, blue at the base and pale yellow-brown at the tips.
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0.4m max. spread |
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0.5m max. height |
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2-5 years to maturity |
Eryngium planum 'Magical Blue Globe' (Blue eryngo 'Magical Blue Globe')
Other names: Eryngium planum 'Kolmaglo'
'Magical Blue Globe' is a compact, clump-forming, evergreen to semi-evergreen perennial with oblong to ovate, toothed, grey-green leaves and, in summer, sturdy, upright, branched stems bearing cone-like, pale blue flower-heads turning deep purple-blue with age. Flowers are surrounded by long, narrow, spiny, often purple-flushed, silvery-grey bracts.
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0.4m max. spread |
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0.5m max. height |
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2-5 years to maturity |
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