Eryngium giganteum
Encyclopedia
Eryngium giganteum, a plant species in the Apiaceae
Apiaceae
The Apiaceae , commonly known as carrot or parsley family, is a group of mostly aromatic plants with hollow stems. The family is large, with more than 3,700 species spread across 434 genera, it is the sixteenth largest family of flowering plants...

family.

Plant description

Plant height 90–100 cm. Silver-blue flowers 3 to 5 cm open in August and September, it dies after flowering and should be grown as a biennial
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