Eryngium agavifolium

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SEA HOLLY

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Glossy, emerald green, sawtooth edged leaves to 24″ long.  Greenish-white, spiny flower heads resembling thistle on strong stems 4 – 5′ tall.  July – September.  Seed heads mature to a dark chocolate-brown lasting into winter.  Full sun.  Prefers dryish soils.  Attracts native pollinators.  Deer resistant.  Zone 6.