Eryngium yuccifolium (eryngo [Big Blue]) is a member of the Apiaceae family. This perennial exhibits a clump forming growth habit and is characterised by its deciduous foliage. It has a hardiness rating of hardy (cold winter [-15 to -10ºc]) and is hardy throughout most of the UK, even in severe winters. May not withstand open or exposed sites or central/northerly locations, with many evergreens suffering foliage damage and plants in pots being at increased risk.
When fully mature, Eryngium yuccifolium can reach an ultimate height of 0.5–1 metres and a spread of 0.1–0.5 metres. For optimal growth, it prefers a south–facing, west–facing, or east–facing aspect and an exposed or sheltered position. It thrives best in chalk, loam, or sand soil types and should be placed in full sun.
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