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Eryngium planum 'Blue Cap' - Sea Holly from Pleasant Run Nursery

Eryngium planum 'Blue Cap' PPAF

Sea Holly

'Blue Cap' ('Blaukappe') Sea Holly blooms in July and August, producing silvery blue spiky flowers in abundance.  The unusual cone-shaped blooms are held on thistle-like silvery foliage and are attractive to butterflies and other pollinators.  The flowers dry well and are used for floral arrangements.  Eryngium 'Blue Cap' performs well in hot dry areas and is salt tolerant, so seashore locations are a perfect place for this unusual perennial.

Height 36 Inches

Spread 18 Inches

Bloom Color Blue

USDA Hardiness Zone 5

Companion Plants to Eryngium planum 'Blue Cap'

Schizachyrium scoparium 'The Blues'
Little Bluestem

Delosperma cooperi
Hardy Ice Plant

Sempervivum arachnoideum 'Cobweb'
Hens and Chicks

Similar Plants to Eryngium planum 'Blue Cap'

Eryngium planum 'Big Blue'
Sea Holly

Artemisia x 'Powis Castle'
Wormwood

Eryngium yuccifolium
Rattlesnake Master