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.  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'

Sempervivum arachnoideum 'Cobweb'
Hens and Chicks

Delosperma cooperi
Hardy Ice Plant

Similar Plants to Eryngium planum 'Blue Cap'

Artemisia x 'Powis Castle'
Wormwood

Eryngium planum 'Big Blue'
Sea Holly

Eryngium yuccifolium
Rattlesnake Master