Eryngium planum 'Blaue Kappe' is an herbaceous 

 in the Apiaceae with branched silvery-blue stems carrying many small, conical blue flowerheads framed by spiky bracts. It typically reaches around 50 cm. Flowering runs from June to September, offering summer colour and architectural seedheads.

Eryngium planum 'Blaue Kappe' belongs to the genus Eryngium within the Apiaceae and originates from temperate parts of Europe and Asia. It forms a compact, thistle-like perennial clump with branched stems that have a silvery-blue cast; the stems bear numerous small conical flowerheads each set in a ring of spiky bracts. The flowers are blue and appear through the summer months, specifically June to September. Position plants where the slender, branched stems and cone-shaped heads will be visible rather than hidden behind taller neighbours, since the floral structure is a key feature. Individual plants reach roughly 50 cm, so allow spacing that lets the branched habit develop without crowding. The blue conical heads and their bracts create a clear textural contrast with softer-leaved perennials and grasses, making the cultivar useful where defined summer structure is wanted. Treat the flowering period as the main display season and plan companions that flower earlier or later to extend garden interest. The spiky bracts remain unmistakable while in bloom and provide a recognisable summer silhouette throughout the plant's flowering months.

Eryngium planum 'Blaue Kappe' is an herbaceous perennial in the Apiaceae with branched silvery-blue stems carrying many small, conical blue flowerheads framed by spiky bracts. It typically reaches around 50 cm. Flowering runs from June to September, offering summer colour and architectural seedheads.

Blue Eryngo Eryngium planum 'Blaue Kappe' produces conical blue flowerheads set in spiky bracts from June to September.

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